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1、数仓DWD层

1）对用户行为数据解析。

2）对业务数据采用维度模型重新建模。

2、DWD层（用户行为日志）

2.1、日志解析思路

（1）页面埋点日志

（2）启动日志

解析思路

2.2、get_json_object函数使用

1）数据

[{"name":"大郎","sex":"男","age":"25"},{"name":"西门庆","sex":"男","age":"47"}]

2）取出第一个json对象

hive (gmall)>
select get_json_object('[{"name":"大郎","sex":"男","age":"25"},{"name":"西门庆","sex":"男","age":"47"}]','$[0]');

3）取出第一个json的age字段的值

hive (gmall)>
SELECT get_json_object('[{"name":"大郎","sex":"男","age":"25"},{"name":"西门庆","sex":"男","age":"47"}]',"$[0].age");

结果是：25

2.3、启动日志表

启动日志解析思路：启动日志表中每行数据对应一个启动记录，一个启动记录应该包含日志中的公共信息和启动信息。先将所有包含start字段的日志过滤出来，然后使用get_json_object函数解析每个字段。

2.3.1、建表语句

DROP TABLE IF EXISTS dwd_start_log;
CREATE EXTERNAL TABLE dwd_start_log(
    `area_code` STRING COMMENT '地区编码',
    `brand` STRING COMMENT '手机品牌',
    `channel` STRING COMMENT '渠道',
    `is_new` STRING COMMENT '是否首次启动',
    `model` STRING COMMENT '手机型号',
    `mid_id` STRING COMMENT '设备id',
    `os` STRING COMMENT '操作系统',
    `user_id` STRING COMMENT '会员id',
    `version_code` STRING COMMENT 'app版本号',
    `entry` STRING COMMENT 'icon手机图标 notice 通知 install 安装后启动',
    `loading_time` BIGINT COMMENT '启动加载时间',
    `open_ad_id` STRING COMMENT '广告页ID ',
    `open_ad_ms` BIGINT COMMENT '广告总共播放时间',
    `open_ad_skip_ms` BIGINT COMMENT '用户跳过广告时点',
    `ts` BIGINT COMMENT '时间'
) COMMENT '启动日志表'
PARTITIONED BY (`dt` STRING) -- 按照时间创建分区
STORED AS PARQUET -- 采用parquet列式存储
LOCATION '/warehouse/gmall/dwd/dwd_start_log' -- 指定在HDFS上存储位置
TBLPROPERTIES('parquet.compression'='lzo') -- 采用LZO压缩
;

2.3.2、数据导入

hive (gmall)> 
insert overwrite table dwd_start_log partition(dt='2022-04-11')
select
    get_json_object(line,'$.common.ar'),
    get_json_object(line,'$.common.ba'),
    get_json_object(line,'$.common.ch'),
    get_json_object(line,'$.common.is_new'),
    get_json_object(line,'$.common.md'),
    get_json_object(line,'$.common.mid'),
    get_json_object(line,'$.common.os'),
    get_json_object(line,'$.common.uid'),
    get_json_object(line,'$.common.vc'),
    get_json_object(line,'$.start.entry'),
    get_json_object(line,'$.start.loading_time'),
    get_json_object(line,'$.start.open_ad_id'),
    get_json_object(line,'$.start.open_ad_ms'),
    get_json_object(line,'$.start.open_ad_skip_ms'),
    get_json_object(line,'$.ts')
from ods_log
where dt='2022-04-11'
and get_json_object(line,'$.start') is not null;
3）查看数据
hive (gmall)> 
select * from dwd_start_log where dt='2022-04-11' limit 2;

2.3.3、查看数据

hive (gmall)> 
select * from dwd_start_log where dt='2022-04-11' limit 2;

2.4、页面日志表

页面日志解析思路：页面日志表中每行数据对应一个页面访问记录，一个页面访问记录应该包含日志中的公共信息和页面信息。先将所有包含page字段的日志过滤出来，然后使用get_json_object函数解析每个字段。

2.4.1、建表语句

DROP TABLE IF EXISTS dwd_page_log;
CREATE EXTERNAL TABLE dwd_page_log(
    `area_code` STRING COMMENT '地区编码',
    `brand` STRING COMMENT '手机品牌',
    `channel` STRING COMMENT '渠道',
    `is_new` STRING COMMENT '是否首次启动',
    `model` STRING COMMENT '手机型号',
    `mid_id` STRING COMMENT '设备id',
    `os` STRING COMMENT '操作系统',
    `user_id` STRING COMMENT '会员id',
    `version_code` STRING COMMENT 'app版本号',
    `during_time` BIGINT COMMENT '持续时间毫秒',
    `page_item` STRING COMMENT '目标id ',
    `page_item_type` STRING COMMENT '目标类型',
    `last_page_id` STRING COMMENT '上页类型',
    `page_id` STRING COMMENT '页面ID ',
    `source_type` STRING COMMENT '来源类型',
    `ts` bigint
) COMMENT '页面日志表'
PARTITIONED BY (`dt` STRING)
STORED AS PARQUET
LOCATION '/warehouse/gmall/dwd/dwd_page_log'
TBLPROPERTIES('parquet.compression'='lzo');

2.4.2、数据导入

hive (gmall)>
insert overwrite table dwd_page_log partition(dt='2022-04-11')
select
    get_json_object(line,'$.common.ar'),
    get_json_object(line,'$.common.ba'),
    get_json_object(line,'$.common.ch'),
    get_json_object(line,'$.common.is_new'),
    get_json_object(line,'$.common.md'),
    get_json_object(line,'$.common.mid'),
    get_json_object(line,'$.common.os'),
    get_json_object(line,'$.common.uid'),
    get_json_object(line,'$.common.vc'),
    get_json_object(line,'$.page.during_time'),
    get_json_object(line,'$.page.item'),
    get_json_object(line,'$.page.item_type'),
    get_json_object(line,'$.page.last_page_id'),
    get_json_object(line,'$.page.page_id'),
    get_json_object(line,'$.page.source_type'),
    get_json_object(line,'$.ts')
from ods_log
where dt='2022-04-11'
and get_json_object(line,'$.page') is not null;

2.4.3、查看数据

hive (gmall)> 
select * from dwd_page_log where dt='2022-04-11' limit 2;

2.5、动作日志表

动作日志解析思路：动作日志表中每行数据对应用户的一个动作记录，一个动作记录应当包含公共信息、页面信息以及动作信息。先将包含action字段的日志过滤出来，然后通过UDTF函数，将action数组“炸开”（类似于explode函数的效果），然后使用get_json_object函数解析每个字段。

2.5.1、建表语句

DROP TABLE IF EXISTS dwd_action_log;
CREATE EXTERNAL TABLE dwd_action_log(
    `area_code` STRING COMMENT '地区编码',
    `brand` STRING COMMENT '手机品牌',
    `channel` STRING COMMENT '渠道',
    `is_new` STRING COMMENT '是否首次启动',
    `model` STRING COMMENT '手机型号',
    `mid_id` STRING COMMENT '设备id',
    `os` STRING COMMENT '操作系统',
    `user_id` STRING COMMENT '会员id',
    `version_code` STRING COMMENT 'app版本号',
    `during_time` BIGINT COMMENT '持续时间毫秒',
    `page_item` STRING COMMENT '目标id ',
    `page_item_type` STRING COMMENT '目标类型',
    `last_page_id` STRING COMMENT '上页类型',
    `page_id` STRING COMMENT '页面id ',
    `source_type` STRING COMMENT '来源类型',
    `action_id` STRING COMMENT '动作id',
    `item` STRING COMMENT '目标id ',
    `item_type` STRING COMMENT '目标类型',
    `ts` BIGINT COMMENT '时间'
) COMMENT '动作日志表'
PARTITIONED BY (`dt` STRING)
STORED AS PARQUET
LOCATION '/warehouse/gmall/dwd/dwd_action_log'
TBLPROPERTIES('parquet.compression'='lzo');

2.5.2、创建UDTF函数

1）设计思路

2）编写代码

（1）创建一个maven工程：hivefunction
（2）创建包名：com.atguigu.hive.udtf
（3）引入如下依赖

<dependencies>
    <!--添加hive依赖-->
    <dependency>
        <groupId>org.apache.hive</groupId>
        <artifactId>hive-exec</artifactId>
        <version>3.1.2</version>
    </dependency>
</dependencies>

（4）编码

package com.atguigu.hive.udtf;

import org.apache.hadoop.hive.ql.exec.UDFArgumentException;
import org.apache.hadoop.hive.ql.metadata.HiveException;
import org.apache.hadoop.hive.ql.udf.generic.GenericUDTF;
import org.apache.hadoop.hive.serde2.objectinspector.ObjectInspector;
import org.apache.hadoop.hive.serde2.objectinspector.ObjectInspectorFactory;
import org.apache.hadoop.hive.serde2.objectinspector.PrimitiveObjectInspector;
import org.apache.hadoop.hive.serde2.objectinspector.StructObjectInspector;
import org.apache.hadoop.hive.serde2.objectinspector.primitive.PrimitiveObjectInspectorFactory;
import org.json.JSONArray;

import java.util.ArrayList;
import java.util.List;

public class ExplodeJSONArray extends GenericUDTF { 
   

    @Override
    public StructObjectInspector initialize(ObjectInspector[] argOIs) throws UDFArgumentException { 
   

        // 1 参数合法性检查
        if (argOIs.length != 1) { 
   
            throw new UDFArgumentException("explode_json_array 只需要一个参数");
        }

        // 2 第一个参数必须为string
        //判断参数是否为基础数据类型
        if (argOIs[0].getCategory() != ObjectInspector.Category.PRIMITIVE) { 
   
            throw new UDFArgumentException("explode_json_array 只接受基础类型参数");
        }

        //将参数对象检查器强转为基础类型对象检查器
        PrimitiveObjectInspector argumentOI = (PrimitiveObjectInspector) argOIs[0];

        //判断参数是否为String类型
        if (argumentOI.getPrimitiveCategory() != PrimitiveObjectInspector.PrimitiveCategory.STRING) { 
   
            throw new UDFArgumentException("explode_json_array 只接受string类型的参数");
        }

        // 3 定义返回值名称和类型
        List<String> fieldNames = new ArrayList<String>();
        List<ObjectInspector> fieldOIs = new ArrayList<ObjectInspector>();

        fieldNames.add("items");
        fieldOIs.add(PrimitiveObjectInspectorFactory.javaStringObjectInspector);

        return ObjectInspectorFactory.getStandardStructObjectInspector(fieldNames, fieldOIs);
    }

    public void process(Object[] objects) throws HiveException { 
   

        // 1 获取传入的数据
        String jsonArray = objects[0].toString();

        // 2 将string转换为json数组
        JSONArray actions = new JSONArray(jsonArray);

        // 3 循环一次，取出数组中的一个json，并写出
        for (int i = 0; i < actions.length(); i++) { 
   

            String[] result = new String[1];
            result[0] = actions.getString(i);
            forward(result);
        }
    }

    public void close() throws HiveException { 
   

    }

}

3）创建函数

（1）打包

（2）将hivefunction-1.0-SNAPSHOT.jar上传到h102的/opt/module，然后再将该jar包上传到HDFS的/user/hive/jars路径下

hadoop fs -mkdir -p /user/hive/jars
hadoop fs -put hivefunction-1.0-SNAPSHOT.jar /user/hive/jars

（3）创建永久函数与开发好的java class关联

create function explode_json_array as 'com.atguigu.hive.udtf.ExplodeJSONArray' using jar 'hdfs://h102:8020/user/hive/jars/hivefunction-1.0-SNAPSHOT.jar';

（4）注意：如果修改了自定义函数重新生成jar包怎么处理？只需要替换HDFS路径上的旧jar包，然后重启Hive客户端即可。

2.5.3、数据导入

insert overwrite table dwd_action_log partition(dt='2022-04-11')
select
    get_json_object(line,'$.common.ar'),
    get_json_object(line,'$.common.ba'),
    get_json_object(line,'$.common.ch'),
    get_json_object(line,'$.common.is_new'),
    get_json_object(line,'$.common.md'),
    get_json_object(line,'$.common.mid'),
    get_json_object(line,'$.common.os'),
    get_json_object(line,'$.common.uid'),
    get_json_object(line,'$.common.vc'),
    get_json_object(line,'$.page.during_time'),
    get_json_object(line,'$.page.item'),
    get_json_object(line,'$.page.item_type'),
    get_json_object(line,'$.page.last_page_id'),
    get_json_object(line,'$.page.page_id'),
    get_json_object(line,'$.page.source_type'),
    get_json_object(action,'$.action_id'),
    get_json_object(action,'$.item'),
    get_json_object(action,'$.item_type'),
    get_json_object(action,'$.ts')
from ods_log lateral view explode_json_array(get_json_object(line,'$.actions')) tmp as action
where dt='2022-04-11'
and get_json_object(line,'$.actions') is not null;

2.5.4、查看数据

select * from dwd_action_log where dt='2022-04-11' limit 2;

2.6、曝光日志表

曝光日志解析思路：曝光日志表中每行数据对应一个曝光记录，一个曝光记录应当包含公共信息、页面信息以及曝光信息。先将包含display字段的日志过滤出来，然后通过UDTF函数，将display数组“炸开”（类似于explode函数的效果），然后使用get_json_object函数解析每个字段。

2.6.1、建表语句

DROP TABLE IF EXISTS dwd_display_log;
CREATE EXTERNAL TABLE dwd_display_log(
    `area_code` STRING COMMENT '地区编码',
    `brand` STRING COMMENT '手机品牌',
    `channel` STRING COMMENT '渠道',
    `is_new` STRING COMMENT '是否首次启动',
    `model` STRING COMMENT '手机型号',
    `mid_id` STRING COMMENT '设备id',
    `os` STRING COMMENT '操作系统',
    `user_id` STRING COMMENT '会员id',
    `version_code` STRING COMMENT 'app版本号',
    `during_time` BIGINT COMMENT 'app版本号',
    `page_item` STRING COMMENT '目标id ',
    `page_item_type` STRING COMMENT '目标类型',
    `last_page_id` STRING COMMENT '上页类型',
    `page_id` STRING COMMENT '页面ID ',
    `source_type` STRING COMMENT '来源类型',
    `ts` BIGINT COMMENT 'app版本号',
    `display_type` STRING COMMENT '曝光类型',
    `item` STRING COMMENT '曝光对象id ',
    `item_type` STRING COMMENT 'app版本号',
    `order` BIGINT COMMENT '曝光顺序',
    `pos_id` BIGINT COMMENT '曝光位置'
) COMMENT '曝光日志表'
PARTITIONED BY (`dt` STRING)
STORED AS PARQUET
LOCATION '/warehouse/gmall/dwd/dwd_display_log'
TBLPROPERTIES('parquet.compression'='lzo'); 

2.6.2、数据导入

insert overwrite table dwd_display_log partition(dt='2022-04-11')
select
    get_json_object(line,'$.common.ar'),
    get_json_object(line,'$.common.ba'),
    get_json_object(line,'$.common.ch'),
    get_json_object(line,'$.common.is_new'),
    get_json_object(line,'$.common.md'),
    get_json_object(line,'$.common.mid'),
    get_json_object(line,'$.common.os'),
    get_json_object(line,'$.common.uid'),
    get_json_object(line,'$.common.vc'),
    get_json_object(line,'$.page.during_time'),
    get_json_object(line,'$.page.item'),
    get_json_object(line,'$.page.item_type'),
    get_json_object(line,'$.page.last_page_id'),
    get_json_object(line,'$.page.page_id'),
    get_json_object(line,'$.page.source_type'),
    get_json_object(line,'$.ts'),
    get_json_object(display,'$.display_type'),
    get_json_object(display,'$.item'),
    get_json_object(display,'$.item_type'),
    get_json_object(display,'$.order'),
    get_json_object(display,'$.pos_id')
from ods_log lateral view explode_json_array(get_json_object(line,'$.displays')) tmp as display
where dt='2022-04-11'
and get_json_object(line,'$.displays') is not null;

2.6.3、查看数据

select * from dwd_display_log where dt='2022-04-11' limit 2;

2.7、错误日志表

错误日志解析思路：错误日志表中每行数据对应一个错误记录，为方便定位错误，一个错误记录应当包含与之对应的公共信息、页面信息、曝光信息、动作信息、启动信息以及错误信息。先将包含err字段的日志过滤出来，然后使用get_json_object函数解析所有字段。

2.7.1、建表语句

DROP TABLE IF EXISTS dwd_error_log;
CREATE EXTERNAL TABLE dwd_error_log(
    `area_code` STRING COMMENT '地区编码',
    `brand` STRING COMMENT '手机品牌',
    `channel` STRING COMMENT '渠道',
    `is_new` STRING COMMENT '是否首次启动',
    `model` STRING COMMENT '手机型号',
    `mid_id` STRING COMMENT '设备id',
    `os` STRING COMMENT '操作系统',
    `user_id` STRING COMMENT '会员id',
    `version_code` STRING COMMENT 'app版本号',
    `page_item` STRING COMMENT '目标id ',
    `page_item_type` STRING COMMENT '目标类型',
    `last_page_id` STRING COMMENT '上页类型',
    `page_id` STRING COMMENT '页面ID ',
    `source_type` STRING COMMENT '来源类型',
    `entry` STRING COMMENT ' icon手机图标 notice 通知 install 安装后启动',
    `loading_time` STRING COMMENT '启动加载时间',
    `open_ad_id` STRING COMMENT '广告页ID ',
    `open_ad_ms` STRING COMMENT '广告总共播放时间',
    `open_ad_skip_ms` STRING COMMENT '用户跳过广告时点',
    `actions` STRING COMMENT '动作',
    `displays` STRING COMMENT '曝光',
    `ts` STRING COMMENT '时间',
    `error_code` STRING COMMENT '错误码',
    `msg` STRING COMMENT '错误信息'
) COMMENT '错误日志表'
PARTITIONED BY (`dt` STRING)
STORED AS PARQUET
LOCATION '/warehouse/gmall/dwd/dwd_error_log'
TBLPROPERTIES('parquet.compression'='lzo');

说明：此处为对动作数组和曝光数组做处理，如需分析错误与单个动作或曝光的关联，可先使用explode_json_array函数将数组“炸开”，再使用get_json_object函数获取具体字段。

2.7.2、数据导入

insert overwrite table dwd_error_log partition(dt='2022-04-11')
select
    get_json_object(line,'$.common.ar'),
    get_json_object(line,'$.common.ba'),
    get_json_object(line,'$.common.ch'),
    get_json_object(line,'$.common.is_new'),
    get_json_object(line,'$.common.md'),
    get_json_object(line,'$.common.mid'),
    get_json_object(line,'$.common.os'),
    get_json_object(line,'$.common.uid'),
    get_json_object(line,'$.common.vc'),
    get_json_object(line,'$.page.item'),
    get_json_object(line,'$.page.item_type'),
    get_json_object(line,'$.page.last_page_id'),
    get_json_object(line,'$.page.page_id'),
    get_json_object(line,'$.page.source_type'),
    get_json_object(line,'$.start.entry'),
    get_json_object(line,'$.start.loading_time'),
    get_json_object(line,'$.start.open_ad_id'),
    get_json_object(line,'$.start.open_ad_ms'),
    get_json_object(line,'$.start.open_ad_skip_ms'),
    get_json_object(line,'$.actions'),
    get_json_object(line,'$.displays'),
    get_json_object(line,'$.ts'),
    get_json_object(line,'$.err.error_code'),
    get_json_object(line,'$.err.msg')
from ods_log
where dt='2022-04-11'
and get_json_object(line,'$.err') is not null;

2.7.3、查看数据

hive (gmall)> 
select * from dwd_error_log where dt='2022-04-11' limit 2;

2.8、DWD层用户行为数据加载脚本

（1）在h102的/root/bin目录下创建脚本

vim ods_to_dwd_log.sh

在脚本中编写如下内容

#!/bin/bash

APP=gmall
# 如果是输入的日期按照取输入日期；如果没输入日期取当前时间的前一天
if [ -n "$2" ] ;then
    do_date=$2
else 
    do_date=`date -d "-1 day" +%F`
fi

dwd_start_log=" set hive.input.format=org.apache.hadoop.hive.ql.io.HiveInputFormat; insert overwrite table ${APP}.dwd_start_log partition(dt='$do_date') select get_json_object(line,'$.common.ar'), get_json_object(line,'$.common.ba'), get_json_object(line,'$.common.ch'), get_json_object(line,'$.common.is_new'), get_json_object(line,'$.common.md'), get_json_object(line,'$.common.mid'), get_json_object(line,'$.common.os'), get_json_object(line,'$.common.uid'), get_json_object(line,'$.common.vc'), get_json_object(line,'$.start.entry'), get_json_object(line,'$.start.loading_time'), get_json_object(line,'$.start.open_ad_id'), get_json_object(line,'$.start.open_ad_ms'), get_json_object(line,'$.start.open_ad_skip_ms'), get_json_object(line,'$.ts') from ${APP}.ods_log where dt='$do_date' and get_json_object(line,'$.start') is not null;"

dwd_page_log=" set hive.input.format=org.apache.hadoop.hive.ql.io.HiveInputFormat; insert overwrite table ${APP}.dwd_page_log partition(dt='$do_date') select get_json_object(line,'$.common.ar'), get_json_object(line,'$.common.ba'), get_json_object(line,'$.common.ch'), get_json_object(line,'$.common.is_new'), get_json_object(line,'$.common.md'), get_json_object(line,'$.common.mid'), get_json_object(line,'$.common.os'), get_json_object(line,'$.common.uid'), get_json_object(line,'$.common.vc'), get_json_object(line,'$.page.during_time'), get_json_object(line,'$.page.item'), get_json_object(line,'$.page.item_type'), get_json_object(line,'$.page.last_page_id'), get_json_object(line,'$.page.page_id'), get_json_object(line,'$.page.source_type'), get_json_object(line,'$.ts') from ${APP}.ods_log where dt='$do_date' and get_json_object(line,'$.page') is not null;"

dwd_action_log=" set hive.input.format=org.apache.hadoop.hive.ql.io.HiveInputFormat; insert overwrite table ${APP}.dwd_action_log partition(dt='$do_date') select get_json_object(line,'$.common.ar'), get_json_object(line,'$.common.ba'), get_json_object(line,'$.common.ch'), get_json_object(line,'$.common.is_new'), get_json_object(line,'$.common.md'), get_json_object(line,'$.common.mid'), get_json_object(line,'$.common.os'), get_json_object(line,'$.common.uid'), get_json_object(line,'$.common.vc'), get_json_object(line,'$.page.during_time'), get_json_object(line,'$.page.item'), get_json_object(line,'$.page.item_type'), get_json_object(line,'$.page.last_page_id'), get_json_object(line,'$.page.page_id'), get_json_object(line,'$.page.source_type'), get_json_object(action,'$.action_id'), get_json_object(action,'$.item'), get_json_object(action,'$.item_type'), get_json_object(action,'$.ts') from ${APP}.ods_log lateral view ${APP}.explode_json_array(get_json_object(line,'$.actions')) tmp as action where dt='$do_date' and get_json_object(line,'$.actions') is not null;"


dwd_display_log=" set hive.input.format=org.apache.hadoop.hive.ql.io.HiveInputFormat; insert overwrite table ${APP}.dwd_display_log partition(dt='$do_date') select get_json_object(line,'$.common.ar'), get_json_object(line,'$.common.ba'), get_json_object(line,'$.common.ch'), get_json_object(line,'$.common.is_new'), get_json_object(line,'$.common.md'), get_json_object(line,'$.common.mid'), get_json_object(line,'$.common.os'), get_json_object(line,'$.common.uid'), get_json_object(line,'$.common.vc'), get_json_object(line,'$.page.during_time'), get_json_object(line,'$.page.item'), get_json_object(line,'$.page.item_type'), get_json_object(line,'$.page.last_page_id'), get_json_object(line,'$.page.page_id'), get_json_object(line,'$.page.source_type'), get_json_object(line,'$.ts'), get_json_object(display,'$.display_type'), get_json_object(display,'$.item'), get_json_object(display,'$.item_type'), get_json_object(display,'$.order'), get_json_object(display,'$.pos_id') from ${APP}.ods_log lateral view ${APP}.explode_json_array(get_json_object(line,'$.displays')) tmp as display where dt='$do_date' and get_json_object(line,'$.displays') is not null;"


dwd_error_log=" set hive.input.format=org.apache.hadoop.hive.ql.io.HiveInputFormat; insert overwrite table ${APP}.dwd_error_log partition(dt='$do_date') select get_json_object(line,'$.common.ar'), get_json_object(line,'$.common.ba'), get_json_object(line,'$.common.ch'), get_json_object(line,'$.common.is_new'), get_json_object(line,'$.common.md'), get_json_object(line,'$.common.mid'), get_json_object(line,'$.common.os'), get_json_object(line,'$.common.uid'), get_json_object(line,'$.common.vc'), get_json_object(line,'$.page.item'), get_json_object(line,'$.page.item_type'), get_json_object(line,'$.page.last_page_id'), get_json_object(line,'$.page.page_id'), get_json_object(line,'$.page.source_type'), get_json_object(line,'$.start.entry'), get_json_object(line,'$.start.loading_time'), get_json_object(line,'$.start.open_ad_id'), get_json_object(line,'$.start.open_ad_ms'), get_json_object(line,'$.start.open_ad_skip_ms'), get_json_object(line,'$.actions'), get_json_object(line,'$.displays'), get_json_object(line,'$.ts'), get_json_object(line,'$.err.error_code'), get_json_object(line,'$.err.msg') from ${APP}.ods_log where dt='$do_date' and get_json_object(line,'$.err') is not null;"


case $1 in
    dwd_start_log )
        hive -e "$dwd_start_log"
    ;;
    dwd_page_log )
        hive -e "$dwd_page_log"
    ;;
    dwd_action_log )
        hive -e "$dwd_action_log"
    ;;
    dwd_display_log )
        hive -e "$dwd_display_log"
    ;;
    dwd_error_log )
        hive -e "$dwd_error_log"
    ;;
    all )
        hive -e "$dwd_start_log$dwd_page_log$dwd_action_log$dwd_display_log$dwd_error_log"
    ;;
esac

（2）增加脚本执行权限

chmod 777 ods_to_dwd_log.sh

（3）执行脚本

ods_to_dwd_log.sh all 2022-04-11

3、DWD层（业务数据）

业务数据方面DWD层的搭建主要注意点在于维度建模。

3.1、评价事实表（事务型事实表）

1）建表语句

DROP TABLE IF EXISTS dwd_comment_info;
CREATE EXTERNAL TABLE dwd_comment_info(
    `id` STRING COMMENT '编号',
    `user_id` STRING COMMENT '用户ID',
    `sku_id` STRING COMMENT '商品sku',
    `spu_id` STRING COMMENT '商品spu',
    `order_id` STRING COMMENT '订单ID',
    `appraise` STRING COMMENT '评价(好评、中评、差评、默认评价)',
    `create_time` STRING COMMENT '评价时间'
) COMMENT '评价事实表'
PARTITIONED BY (`dt` STRING)
STORED AS PARQUET
LOCATION '/warehouse/gmall/dwd/dwd_comment_info/'
TBLPROPERTIES ("parquet.compression"="lzo");

2）分区规划

3）数据装载

4）首日装载

insert overwrite table dwd_comment_info partition (dt)
select
    id,
    user_id,
    sku_id,
    spu_id,
    order_id,
    appraise,
    create_time,
    date_format(create_time,'yyyy-MM-dd')
from ods_comment_info
where dt='2022-04-11';

5）每日装载

insert overwrite table dwd_comment_info partition(dt='2022-04-12')
select
    id,
    user_id,
    sku_id,
    spu_id,
    order_id,
    appraise,
    create_time
from ods_comment_info where dt='2022-04-12';

3.2、订单明细事实表（事务型事实表）

1）建表语句

DROP TABLE IF EXISTS dwd_order_detail;
CREATE EXTERNAL TABLE dwd_order_detail (
    `id` STRING COMMENT '订单编号',
    `order_id` STRING COMMENT '订单号',
    `user_id` STRING COMMENT '用户id',
    `sku_id` STRING COMMENT 'sku商品id',
    `province_id` STRING COMMENT '省份ID',
    `activity_id` STRING COMMENT '活动ID',
    `activity_rule_id` STRING COMMENT '活动规则ID',
    `coupon_id` STRING COMMENT '优惠券ID',
    `create_time` STRING COMMENT '创建时间',
    `source_type` STRING COMMENT '来源类型',
    `source_id` STRING COMMENT '来源编号',
    `sku_num` BIGINT COMMENT '商品数量',
    `original_amount` DECIMAL(16,2) COMMENT '原始价格',
    `split_activity_amount` DECIMAL(16,2) COMMENT '活动优惠分摊',
    `split_coupon_amount` DECIMAL(16,2) COMMENT '优惠券优惠分摊',
    `split_final_amount` DECIMAL(16,2) COMMENT '最终价格分摊'
) COMMENT '订单明细事实表表'
PARTITIONED BY (`dt` STRING)
STORED AS PARQUET
LOCATION '/warehouse/gmall/dwd/dwd_order_detail/'
TBLPROPERTIES ("parquet.compression"="lzo");

2）分区规划

3）数据装载

4）首日装载

insert overwrite table dwd_order_detail partition(dt)
select
    od.id,
    od.order_id,
    oi.user_id,
    od.sku_id,
    oi.province_id,
    oda.activity_id,
    oda.activity_rule_id,
    odc.coupon_id,
    od.create_time,
    od.source_type,
    od.source_id,
    od.sku_num,
    od.order_price*od.sku_num,
    od.split_activity_amount,
    od.split_coupon_amount,
    od.split_final_amount,
    date_format(create_time,'yyyy-MM-dd')
from
(
    select
        *
    from ods_order_detail
    where dt='2022-04-11'
)od
left join
(
    select
        id,
        user_id,
        province_id
    from ods_order_info
    where dt='2022-04-11'
)oi
on od.order_id=oi.id
left join
(
    select
        order_detail_id,
        activity_id,
        activity_rule_id
    from ods_order_detail_activity
    where dt='2022-04-11'
)oda
on od.id=oda.order_detail_id
left join
(
    select
        order_detail_id,
        coupon_id
    from ods_order_detail_coupon
    where dt='2022-04-11'
)odc
on od.id=odc.order_detail_id;

5）每日装载

insert overwrite table dwd_order_detail partition(dt='2022-04-12')
select
    od.id,
    od.order_id,
    oi.user_id,
    od.sku_id,
    oi.province_id,
    oda.activity_id,
    oda.activity_rule_id,
    odc.coupon_id,
    od.create_time,
    od.source_type,
    od.source_id,
    od.sku_num,
    od.order_price*od.sku_num,
    od.split_activity_amount,
    od.split_coupon_amount,
    od.split_final_amount
from
(
    select
        *
    from ods_order_detail
    where dt='2022-04-12'
)od
left join
(
    select
        id,
        user_id,
        province_id
    from ods_order_info
    where dt='2022-04-12'
)oi
on od.order_id=oi.id
left join
(
    select
        order_detail_id,
        activity_id,
        activity_rule_id
    from ods_order_detail_activity
    where dt='2022-04-12'
)oda
on od.id=oda.order_detail_id
left join
(
    select
        order_detail_id,
        coupon_id
    from ods_order_detail_coupon
    where dt='2022-04-12'
)odc
on od.id=odc.order_detail_id;

3.3、退单事实表（事务型事实表）

1）建表语句

DROP TABLE IF EXISTS dwd_order_refund_info;
CREATE EXTERNAL TABLE dwd_order_refund_info(
    `id` STRING COMMENT '编号',
    `user_id` STRING COMMENT '用户ID',
    `order_id` STRING COMMENT '订单ID',
    `sku_id` STRING COMMENT '商品ID',
    `province_id` STRING COMMENT '地区ID',
    `refund_type` STRING COMMENT '退单类型',
    `refund_num` BIGINT COMMENT '退单件数',
    `refund_amount` DECIMAL(16,2) COMMENT '退单金额',
    `refund_reason_type` STRING COMMENT '退单原因类型',
    `create_time` STRING COMMENT '退单时间'
) COMMENT '退单事实表'
PARTITIONED BY (`dt` STRING)
STORED AS PARQUET
LOCATION '/warehouse/gmall/dwd/dwd_order_refund_info/'
TBLPROPERTIES ("parquet.compression"="lzo");

2）分区规划

3）数据装载

4）首日装载

insert overwrite table dwd_order_refund_info partition(dt)
select
    ri.id,
    ri.user_id,
    ri.order_id,
    ri.sku_id,
    oi.province_id,
    ri.refund_type,
    ri.refund_num,
    ri.refund_amount,
    ri.refund_reason_type,
    ri.create_time,
    date_format(ri.create_time,'yyyy-MM-dd')
from
(
    select * from ods_order_refund_info where dt='2022-04-11'
)ri
left join
(
    select id,province_id from ods_order_info where dt='2022-04-11'
)oi
on ri.order_id=oi.id;

5）每日装载

insert overwrite table dwd_order_refund_info partition(dt='2022-04-12')
select
    ri.id,
    ri.user_id,
    ri.order_id,
    ri.sku_id,
    oi.province_id,
    ri.refund_type,
    ri.refund_num,
    ri.refund_amount,
    ri.refund_reason_type,
    ri.create_time
from
(
    select * from ods_order_refund_info where dt='2022-04-12'
)ri
left join
(
    select id,province_id from ods_order_info where dt='2022-04-12'
)oi
on ri.order_id=oi.id;

3.4、加购事实表（周期型快照事实表，每日快照）

1）建表语句

DROP TABLE IF EXISTS dwd_cart_info;
CREATE EXTERNAL TABLE dwd_cart_info(
    `id` STRING COMMENT '编号',
    `user_id` STRING COMMENT '用户ID',
    `sku_id` STRING COMMENT '商品ID',
    `source_type` STRING COMMENT '来源类型',
    `source_id` STRING COMMENT '来源编号',
    `cart_price` DECIMAL(16,2) COMMENT '加入购物车时的价格',
    `is_ordered` STRING COMMENT '是否已下单',
    `create_time` STRING COMMENT '创建时间',
    `operate_time` STRING COMMENT '修改时间',
    `order_time` STRING COMMENT '下单时间',
    `sku_num` BIGINT COMMENT '加购数量'
) COMMENT '加购事实表'
PARTITIONED BY (`dt` STRING)
STORED AS PARQUET
LOCATION '/warehouse/gmall/dwd/dwd_cart_info/'
TBLPROPERTIES ("parquet.compression"="lzo");

2）分区规划

3）数据装载

4）首日装载

insert overwrite table dwd_cart_info partition(dt='2022-04-11')
select
    id,
    user_id,
    sku_id,
    source_type,
    source_id,
    cart_price,
    is_ordered,
    create_time,
    operate_time,
    order_time,
    sku_num
from ods_cart_info
where dt='2022-04-11';

5）每日装载

insert overwrite table dwd_cart_info partition(dt='2022-04-12')
select
    id,
    user_id,
    sku_id,
    source_type,
    source_id,
    cart_price,
    is_ordered,
    create_time,
    operate_time,
    order_time,
    sku_num
from ods_cart_info
where dt='2022-04-12';

3.5、收藏事实表（周期型快照事实表，每日快照）

1）建表语句

DROP TABLE IF EXISTS dwd_favor_info;
CREATE EXTERNAL TABLE dwd_favor_info(
    `id` STRING COMMENT '编号',
    `user_id` STRING  COMMENT '用户id',
    `sku_id` STRING  COMMENT 'skuid',
    `spu_id` STRING  COMMENT 'spuid',
    `is_cancel` STRING  COMMENT '是否取消',
    `create_time` STRING  COMMENT '收藏时间',
    `cancel_time` STRING  COMMENT '取消时间'
) COMMENT '收藏事实表'
PARTITIONED BY (`dt` STRING)
STORED AS PARQUET
LOCATION '/warehouse/gmall/dwd/dwd_favor_info/'
TBLPROPERTIES ("parquet.compression"="lzo");

2）分区规划

3）数据装载

4）首日装载

insert overwrite table dwd_favor_info partition(dt='2022-04-11')
select
    id,
    user_id,
    sku_id,
    spu_id,
    is_cancel,
    create_time,
    cancel_time
from ods_favor_info
where dt='2022-04-11';

5）每日装载

insert overwrite table dwd_favor_info partition(dt='2022-04-12')
select
    id,
    user_id,
    sku_id,
    spu_id,
    is_cancel,
    create_time,
    cancel_time
from ods_favor_info
where dt='2022-04-12';

3.6 优惠券领用事实表（累积型快照事实表）

1）建表语句

DROP TABLE IF EXISTS dwd_coupon_use;
CREATE EXTERNAL TABLE dwd_coupon_use(
    `id` STRING COMMENT '编号',
    `coupon_id` STRING  COMMENT '优惠券ID',
    `user_id` STRING  COMMENT 'userid',
    `order_id` STRING  COMMENT '订单id',
    `coupon_status` STRING  COMMENT '优惠券状态',
    `get_time` STRING  COMMENT '领取时间',
    `using_time` STRING  COMMENT '使用时间(下单)',
    `used_time` STRING  COMMENT '使用时间(支付)',
    `expire_time` STRING COMMENT '过期时间'
) COMMENT '优惠券领用事实表'
PARTITIONED BY (`dt` STRING)
STORED AS PARQUET
LOCATION '/warehouse/gmall/dwd/dwd_coupon_use/'
TBLPROPERTIES ("parquet.compression"="lzo");

2）分区规划

3）数据装载

4）首日装载

insert overwrite table dwd_coupon_use partition(dt)
select
    id,
    coupon_id,
    user_id,
    order_id,
    coupon_status,
    get_time,
    using_time,
    used_time,
    expire_time,
    coalesce(date_format(used_time,'yyyy-MM-dd'),date_format(expire_time,'yyyy-MM-dd'),'9999-99-99')
from ods_coupon_use
where dt='2022-04-11';

5）每日装载

a.装载逻辑

b.转载语句

insert overwrite table dwd_coupon_use partition(dt)
select
    nvl(new.id,old.id),
    nvl(new.coupon_id,old.coupon_id),
    nvl(new.user_id,old.user_id),
    nvl(new.order_id,old.order_id),
    nvl(new.coupon_status,old.coupon_status),
    nvl(new.get_time,old.get_time),
    nvl(new.using_time,old.using_time),
    nvl(new.used_time,old.used_time),
    nvl(new.expire_time,old.expire_time),
    coalesce(date_format(nvl(new.used_time,old.used_time),'yyyy-MM-dd'),date_format(nvl(new.expire_time,old.expire_time),'yyyy-MM-dd'),'9999-99-99')
from
(
    select
        id,
        coupon_id,
        user_id,
        order_id,
        coupon_status,
        get_time,
        using_time,
        used_time,
        expire_time
    from dwd_coupon_use
    where dt='9999-99-99'
)old
full outer join
(
    select
        id,
        coupon_id,
        user_id,
        order_id,
        coupon_status,
        get_time,
        using_time,
        used_time,
        expire_time
    from ods_coupon_use
    where dt='2022-04-12'
)new
on old.id=new.id;

3.7 支付事实表（累积型快照事实表）

1）建表语句

DROP TABLE IF EXISTS dwd_payment_info;
CREATE EXTERNAL TABLE dwd_payment_info (
    `id` STRING COMMENT '编号',
    `order_id` STRING COMMENT '订单编号',
    `user_id` STRING COMMENT '用户编号',
    `province_id` STRING COMMENT '地区ID',
    `trade_no` STRING COMMENT '交易编号',
    `out_trade_no` STRING COMMENT '对外交易编号',
    `payment_type` STRING COMMENT '支付类型',
    `payment_amount` DECIMAL(16,2) COMMENT '支付金额',
    `payment_status` STRING COMMENT '支付状态',
    `create_time` STRING COMMENT '创建时间',--调用第三方支付接口的时间
    `callback_time` STRING COMMENT '完成时间'--支付完成时间，即支付成功回调时间
) COMMENT '支付事实表表'
PARTITIONED BY (`dt` STRING)
STORED AS PARQUET
LOCATION '/warehouse/gmall/dwd/dwd_payment_info/'
TBLPROPERTIES ("parquet.compression"="lzo");

2）分区规划

3）数据装载

4）首日装载

insert overwrite table dwd_payment_info partition(dt)
select
    pi.id,
    pi.order_id,
    pi.user_id,
    oi.province_id,
    pi.trade_no,
    pi.out_trade_no,
    pi.payment_type,
    pi.payment_amount,
    pi.payment_status,
    pi.create_time,
    pi.callback_time,
    nvl(date_format(pi.callback_time,'yyyy-MM-dd'),'9999-99-99')
from
(
    select * from ods_payment_info where dt='2022-04-11'
)pi
left join
(
    select id,province_id from ods_order_info where dt='2022-04-11'
)oi
on pi.order_id=oi.id;

5）每日装载

insert overwrite table dwd_payment_info partition(dt)
select
    nvl(new.id,old.id),
    nvl(new.order_id,old.order_id),
    nvl(new.user_id,old.user_id),
    nvl(new.province_id,old.province_id),
    nvl(new.trade_no,old.trade_no),
    nvl(new.out_trade_no,old.out_trade_no),
    nvl(new.payment_type,old.payment_type),
    nvl(new.payment_amount,old.payment_amount),
    nvl(new.payment_status,old.payment_status),
    nvl(new.create_time,old.create_time),
    nvl(new.callback_time,old.callback_time),
    nvl(date_format(nvl(new.callback_time,old.callback_time),'yyyy-MM-dd'),'9999-99-99')
from
(
    select id,
       order_id,
       user_id,
       province_id,
       trade_no,
       out_trade_no,
       payment_type,
       payment_amount,
       payment_status,
       create_time,
       callback_time
    from dwd_payment_info
    where dt = '9999-99-99'
)old
full outer join
(
    select
        pi.id,
        pi.out_trade_no,
        pi.order_id,
        pi.user_id,
        oi.province_id,
        pi.payment_type,
        pi.trade_no,
        pi.payment_amount,
        pi.payment_status,
        pi.create_time,
        pi.callback_time
    from
    (
        select * from ods_payment_info where dt='2022-04-12'
    )pi
    left join
    (
        select id,province_id from ods_order_info where dt='2022-04-12'
    )oi
    on pi.order_id=oi.id
)new
on old.id=new.id;

3.8 退款事实表（累积型快照事实表）

1）建表语句

DROP TABLE IF EXISTS dwd_refund_payment;
CREATE EXTERNAL TABLE dwd_refund_payment (
    `id` STRING COMMENT '编号',
    `user_id` STRING COMMENT '用户ID',
    `order_id` STRING COMMENT '订单编号',
    `sku_id` STRING COMMENT 'SKU编号',
    `province_id` STRING COMMENT '地区ID',
    `trade_no` STRING COMMENT '交易编号',
    `out_trade_no` STRING COMMENT '对外交易编号',
    `payment_type` STRING COMMENT '支付类型',
    `refund_amount` DECIMAL(16,2) COMMENT '退款金额',
    `refund_status` STRING COMMENT '退款状态',
    `create_time` STRING COMMENT '创建时间',--调用第三方支付接口的时间
    `callback_time` STRING COMMENT '回调时间'--支付接口回调时间，即支付成功时间
) COMMENT '退款事实表'
PARTITIONED BY (`dt` STRING)
STORED AS PARQUET
LOCATION '/warehouse/gmall/dwd/dwd_refund_payment/'
TBLPROPERTIES ("parquet.compression"="lzo");

2）分区规划

3）数据装载

4）首日装载

insert overwrite table dwd_refund_payment partition(dt)
select
    rp.id,
    user_id,
    order_id,
    sku_id,
    province_id,
    trade_no,
    out_trade_no,
    payment_type,
    refund_amount,
    refund_status,
    create_time,
    callback_time,
    nvl(date_format(callback_time,'yyyy-MM-dd'),'9999-99-99')
from
(
    select
        id,
        out_trade_no,
        order_id,
        sku_id,
        payment_type,
        trade_no,
        refund_amount,
        refund_status,
        create_time,
        callback_time
    from ods_refund_payment
    where dt='2022-04-11'
)rp
left join
(
    select
        id,
        user_id,
        province_id
    from ods_order_info
    where dt='2022-04-11'
)oi
on rp.order_id=oi.id;

5）每日装载

insert overwrite table dwd_refund_payment partition(dt)
select
    nvl(new.id,old.id),
    nvl(new.user_id,old.user_id),
    nvl(new.order_id,old.order_id),
    nvl(new.sku_id,old.sku_id),
    nvl(new.province_id,old.province_id),
    nvl(new.trade_no,old.trade_no),
    nvl(new.out_trade_no,old.out_trade_no),
    nvl(new.payment_type,old.payment_type),
    nvl(new.refund_amount,old.refund_amount),
    nvl(new.refund_status,old.refund_status),
    nvl(new.create_time,old.create_time),
    nvl(new.callback_time,old.callback_time),
    nvl(date_format(nvl(new.callback_time,old.callback_time),'yyyy-MM-dd'),'9999-99-99')
from
(
    select
        id,
        user_id,
        order_id,
        sku_id,
        province_id,
        trade_no,
        out_trade_no,
        payment_type,
        refund_amount,
        refund_status,
        create_time,
        callback_time
    from dwd_refund_payment
    where dt='9999-99-99'
)old
full outer join
(
    select
        rp.id,
        user_id,
        order_id,
        sku_id,
        province_id,
        trade_no,
        out_trade_no,
        payment_type,
        refund_amount,
        refund_status,
        create_time,
        callback_time
    from
    (
        select
            id,
            out_trade_no,
            order_id,
            sku_id,
            payment_type,
            trade_no,
            refund_amount,
            refund_status,
            create_time,
            callback_time
        from ods_refund_payment
        where dt='2022-04-12'
    )rp
    left join
    (
        select
            id,
            user_id,
            province_id
        from ods_order_info
        where dt='2022-04-12'
    )oi
    on rp.order_id=oi.id
)new
on old.id=new.id;

3.9 订单事实表（累积型快照事实表）

1）建表语句

DROP TABLE IF EXISTS dwd_order_info;
CREATE EXTERNAL TABLE dwd_order_info(
    `id` STRING COMMENT '编号',
    `order_status` STRING COMMENT '订单状态',
    `user_id` STRING COMMENT '用户ID',
    `province_id` STRING COMMENT '地区ID',
    `payment_way` STRING COMMENT '支付方式',
    `delivery_address` STRING COMMENT '邮寄地址',
    `out_trade_no` STRING COMMENT '对外交易编号',
    `tracking_no` STRING COMMENT '物流单号',
    `create_time` STRING COMMENT '创建时间(未支付状态)',
    `payment_time` STRING COMMENT '支付时间(已支付状态)',
    `cancel_time` STRING COMMENT '取消时间(已取消状态)',
    `finish_time` STRING COMMENT '完成时间(已完成状态)',
    `refund_time` STRING COMMENT '退款时间(退款中状态)',
    `refund_finish_time` STRING COMMENT '退款完成时间(退款完成状态)',
    `expire_time` STRING COMMENT '过期时间',
    `feight_fee` DECIMAL(16,2) COMMENT '运费',
    `feight_fee_reduce` DECIMAL(16,2) COMMENT '运费减免',
    `activity_reduce_amount` DECIMAL(16,2) COMMENT '活动减免',
    `coupon_reduce_amount` DECIMAL(16,2) COMMENT '优惠券减免',
    `original_amount` DECIMAL(16,2) COMMENT '订单原始价格',
    `final_amount` DECIMAL(16,2) COMMENT '订单最终价格'
) COMMENT '订单事实表'
PARTITIONED BY (`dt` STRING)
STORED AS PARQUET
LOCATION '/warehouse/gmall/dwd/dwd_order_info/'
TBLPROPERTIES ("parquet.compression"="lzo");

2）分区规划

3）数据装载

4）首日装载

insert overwrite table dwd_order_info partition(dt)
select
    oi.id,
    oi.order_status,
    oi.user_id,
    oi.province_id,
    oi.payment_way,
    oi.delivery_address,
    oi.out_trade_no,
    oi.tracking_no,
    oi.create_time,
    times.ts['1002'] payment_time,
    times.ts['1003'] cancel_time,
    times.ts['1004'] finish_time,
    times.ts['1005'] refund_time,
    times.ts['1006'] refund_finish_time,
    oi.expire_time,
    feight_fee,
    feight_fee_reduce,
    activity_reduce_amount,
    coupon_reduce_amount,
    original_amount,
    final_amount,
    case
        when times.ts['1003'] is not null then date_format(times.ts['1003'],'yyyy-MM-dd')
        when times.ts['1004'] is not null and date_add(date_format(times.ts['1004'],'yyyy-MM-dd'),7)<='2022-04-11' and times.ts['1005'] is null then date_add(date_format(times.ts['1004'],'yyyy-MM-dd'),7)
        when times.ts['1006'] is not null then date_format(times.ts['1006'],'yyyy-MM-dd')
        when oi.expire_time is not null then date_format(oi.expire_time,'yyyy-MM-dd')
        else '9999-99-99'
    end
from
(
    select
        *
    from ods_order_info
    where dt='2022-04-11'
)oi
left join
(
    select
        order_id,
        str_to_map(concat_ws(',',collect_set(concat(order_status,'=',operate_time))),',','=') ts
    from ods_order_status_log
    where dt='2022-04-11'
    group by order_id
)times
on oi.id=times.order_id;

5）每日装载

insert overwrite table dwd_order_info partition(dt)
select
    nvl(new.id,old.id),
    nvl(new.order_status,old.order_status),
    nvl(new.user_id,old.user_id),
    nvl(new.province_id,old.province_id),
    nvl(new.payment_way,old.payment_way),
    nvl(new.delivery_address,old.delivery_address),
    nvl(new.out_trade_no,old.out_trade_no),
    nvl(new.tracking_no,old.tracking_no),
    nvl(new.create_time,old.create_time),
    nvl(new.payment_time,old.payment_time),
    nvl(new.cancel_time,old.cancel_time),
    nvl(new.finish_time,old.finish_time),
    nvl(new.refund_time,old.refund_time),
    nvl(new.refund_finish_time,old.refund_finish_time),
    nvl(new.expire_time,old.expire_time),
    nvl(new.feight_fee,old.feight_fee),
    nvl(new.feight_fee_reduce,old.feight_fee_reduce),
    nvl(new.activity_reduce_amount,old.activity_reduce_amount),
    nvl(new.coupon_reduce_amount,old.coupon_reduce_amount),
    nvl(new.original_amount,old.original_amount),
    nvl(new.final_amount,old.final_amount),
    case
        when new.cancel_time is not null then date_format(new.cancel_time,'yyyy-MM-dd')
        when new.finish_time is not null and date_add(date_format(new.finish_time,'yyyy-MM-dd'),7)='2022-04-12' and new.refund_time is null then '2022-04-12'
        when new.refund_finish_time is not null then date_format(new.refund_finish_time,'yyyy-MM-dd')
        when new.expire_time is not null then date_format(new.expire_time,'yyyy-MM-dd')
        else '9999-99-99'
    end
from
(
    select
        id,
        order_status,
        user_id,
        province_id,
        payment_way,
        delivery_address,
        out_trade_no,
        tracking_no,
        create_time,
        payment_time,
        cancel_time,
        finish_time,
        refund_time,
        refund_finish_time,
        expire_time,
        feight_fee,
        feight_fee_reduce,
        activity_reduce_amount,
        coupon_reduce_amount,
        original_amount,
        final_amount
    from dwd_order_info
    where dt='9999-99-99'
)old
full outer join
(
    select
        oi.id,
        oi.order_status,
        oi.user_id,
        oi.province_id,
        oi.payment_way,
        oi.delivery_address,
        oi.out_trade_no,
        oi.tracking_no,
        oi.create_time,
        times.ts['1002'] payment_time,
        times.ts['1003'] cancel_time,
        times.ts['1004'] finish_time,
        times.ts['1005'] refund_time,
        times.ts['1006'] refund_finish_time,
        oi.expire_time,
        feight_fee,
        feight_fee_reduce,
        activity_reduce_amount,
        coupon_reduce_amount,
        original_amount,
        final_amount
    from
    (
        select
            *
        from ods_order_info
        where dt='2022-04-12'
    )oi
    left join
    (
        select
            order_id,
            str_to_map(concat_ws(',',collect_set(concat(order_status,'=',operate_time))),',','=') ts
        from ods_order_status_log
        where dt='2022-04-12'
        group by order_id
    )times
    on oi.id=times.order_id
)new
on old.id=new.id;

3.10 DWD层业务数据首日装载脚本

3.10.1编写脚本

（1）在/root/bin目录下创建脚本ods_to_dwd_db_init.sh

vim ods_to_dwd_db_init.sh

在脚本中填写如下内容

#!/bin/bash
APP=gmall

if [ -n "$2" ] ;then
   do_date=$2
else 
   echo "请传入日期参数"
   exit
fi 

dwd_order_info=" set hive.exec.dynamic.partition.mode=nonstrict; set hive.input.format=org.apache.hadoop.hive.ql.io.HiveInputFormat; insert overwrite table ${APP}.dwd_order_info partition(dt) select oi.id, oi.order_status, oi.user_id, oi.province_id, oi.payment_way, oi.delivery_address, oi.out_trade_no, oi.tracking_no, oi.create_time, times.ts['1002'] payment_time, times.ts['1003'] cancel_time, times.ts['1004'] finish_time, times.ts['1005'] refund_time, times.ts['1006'] refund_finish_time, oi.expire_time, feight_fee, feight_fee_reduce, activity_reduce_amount, coupon_reduce_amount, original_amount, final_amount, case when times.ts['1003'] is not null then date_format(times.ts['1003'],'yyyy-MM-dd') when times.ts['1004'] is not null and date_add(date_format(times.ts['1004'],'yyyy-MM-dd'),7)<='$do_date' and times.ts['1005'] is null then date_add(date_format(times.ts['1004'],'yyyy-MM-dd'),7) when times.ts['1006'] is not null then date_format(times.ts['1006'],'yyyy-MM-dd') when oi.expire_time is not null then date_format(oi.expire_time,'yyyy-MM-dd') else '9999-99-99' end from ( select * from ${APP}.ods_order_info where dt='$do_date' )oi left join ( select order_id, str_to_map(concat_ws(',',collect_set(concat(order_status,'=',operate_time))),',','=') ts from ${APP}.ods_order_status_log where dt='$do_date' group by order_id )times on oi.id=times.order_id;"

dwd_order_detail=" set hive.exec.dynamic.partition.mode=nonstrict; set hive.input.format=org.apache.hadoop.hive.ql.io.HiveInputFormat; insert overwrite table ${APP}.dwd_order_detail partition(dt) select od.id, od.order_id, oi.user_id, od.sku_id, oi.province_id, oda.activity_id, oda.activity_rule_id, odc.coupon_id, od.create_time, od.source_type, od.source_id, od.sku_num, od.order_price*od.sku_num, od.split_activity_amount, od.split_coupon_amount, od.split_final_amount, date_format(create_time,'yyyy-MM-dd') from ( select * from ${APP}.ods_order_detail where dt='$do_date' )od left join ( select id, user_id, province_id from ${APP}.ods_order_info where dt='$do_date' )oi on od.order_id=oi.id left join ( select order_detail_id, activity_id, activity_rule_id from ${APP}.ods_order_detail_activity where dt='$do_date' )oda on od.id=oda.order_detail_id left join ( select order_detail_id, coupon_id from ${APP}.ods_order_detail_coupon where dt='$do_date' )odc on od.id=odc.order_detail_id;"

dwd_payment_info=" set hive.exec.dynamic.partition.mode=nonstrict; set hive.input.format=org.apache.hadoop.hive.ql.io.HiveInputFormat; insert overwrite table ${APP}.dwd_payment_info partition(dt) select pi.id, pi.order_id, pi.user_id, oi.province_id, pi.trade_no, pi.out_trade_no, pi.payment_type, pi.payment_amount, pi.payment_status, pi.create_time, pi.callback_time, nvl(date_format(pi.callback_time,'yyyy-MM-dd'),'9999-99-99') from ( select * from ${APP}.ods_payment_info where dt='$do_date' )pi left join ( select id,province_id from ${APP}.ods_order_info where dt='$do_date' )oi on pi.order_id=oi.id;"

dwd_cart_info=" set hive.input.format=org.apache.hadoop.hive.ql.io.HiveInputFormat; insert overwrite table ${APP}.dwd_cart_info partition(dt='$do_date') select id, user_id, sku_id, source_type, source_id, cart_price, is_ordered, create_time, operate_time, order_time, sku_num from ${APP}.ods_cart_info where dt='$do_date';"

dwd_comment_info=" set hive.exec.dynamic.partition.mode=nonstrict; set hive.input.format=org.apache.hadoop.hive.ql.io.HiveInputFormat; insert overwrite table ${APP}.dwd_comment_info partition(dt) select id, user_id, sku_id, spu_id, order_id, appraise, create_time, date_format(create_time,'yyyy-MM-dd') from ${APP}.ods_comment_info where dt='$do_date'; "

dwd_favor_info=" set hive.input.format=org.apache.hadoop.hive.ql.io.HiveInputFormat; insert overwrite table ${APP}.dwd_favor_info partition(dt='$do_date') select id, user_id, sku_id, spu_id, is_cancel, create_time, cancel_time from ${APP}.ods_favor_info where dt='$do_date';"

dwd_coupon_use=" set hive.exec.dynamic.partition.mode=nonstrict; set hive.input.format=org.apache.hadoop.hive.ql.io.HiveInputFormat; insert overwrite table ${APP}.dwd_coupon_use partition(dt) select id, coupon_id, user_id, order_id, coupon_status, get_time, using_time, used_time, expire_time, coalesce(date_format(used_time,'yyyy-MM-dd'),date_format(expire_time,'yyyy-MM-dd'),'9999-99-99') from ${APP}.ods_coupon_use where dt='$do_date';"

dwd_order_refund_info=" set hive.exec.dynamic.partition.mode=nonstrict; set hive.input.format=org.apache.hadoop.hive.ql.io.HiveInputFormat; insert overwrite table ${APP}.dwd_order_refund_info partition(dt) select ri.id, ri.user_id, ri.order_id, ri.sku_id, oi.province_id, ri.refund_type, ri.refund_num, ri.refund_amount, ri.refund_reason_type, ri.create_time, date_format(ri.create_time,'yyyy-MM-dd') from ( select * from ${APP}.ods_order_refund_info where dt='$do_date' )ri left join ( select id,province_id from ${APP}.ods_order_info where dt='$do_date' )oi on ri.order_id=oi.id;"

dwd_refund_payment=" set hive.exec.dynamic.partition.mode=nonstrict; set hive.input.format=org.apache.hadoop.hive.ql.io.HiveInputFormat; insert overwrite table ${APP}.dwd_refund_payment partition(dt) select rp.id, user_id, order_id, sku_id, province_id, trade_no, out_trade_no, payment_type, refund_amount, refund_status, create_time, callback_time, nvl(date_format(callback_time,'yyyy-MM-dd'),'9999-99-99') from ( select id, out_trade_no, order_id, sku_id, payment_type, trade_no, refund_amount, refund_status, create_time, callback_time from ${APP}.ods_refund_payment where dt='$do_date' )rp left join ( select id, user_id, province_id from ${APP}.ods_order_info where dt='$do_date' )oi on rp.order_id=oi.id;"

case $1 in
    dwd_order_info )
        hive -e "$dwd_order_info"
    ;;
    dwd_order_detail )
        hive -e "$dwd_order_detail"
    ;;
    dwd_payment_info )
        hive -e "$dwd_payment_info"
    ;;
    dwd_cart_info )
        hive -e "$dwd_cart_info"
    ;;
    dwd_comment_info )
        hive -e "$dwd_comment_info"
    ;;
    dwd_favor_info )
        hive -e "$dwd_favor_info"
    ;;
    dwd_coupon_use )
        hive -e "$dwd_coupon_use"
    ;;
    dwd_order_refund_info )
        hive -e "$dwd_order_refund_info"
    ;;
    dwd_refund_payment )
        hive -e "$dwd_refund_payment"
    ;;
    all )
        hive -e "$dwd_order_info$dwd_order_detail$dwd_payment_info$dwd_cart_info$dwd_comment_info$dwd_favor_info$dwd_coupon_use$dwd_order_refund_info$dwd_refund_payment"
    ;;
esac

（2）增加执行权限

chmod +x ods_to_dwd_db_init.sh

3.10.2使用脚本

ods_to_dwd_db_init.sh all 2022-04-11

3.11 DWD层业务数据每日装载脚本

3.11.1编写脚本

（1）在/root/bin目录下创建脚本ods_to_dwd_db.sh

vim ods_to_dwd_db.sh

在脚本中填写如下内容

#!/bin/bash

APP=gmall
# 如果是输入的日期按照取输入日期；如果没输入日期取当前时间的前一天
if [ -n "$2" ] ;then
    do_date=$2
else 
    do_date=`date -d "-1 day" +%F`
fi


# 假设某累积型快照事实表，某天所有的业务记录全部完成，则会导致9999-99-99分区的数据未被覆盖，从而导致数据重复，该函数根据9999-99-99分区的数据的末次修改时间判断其是否被覆盖了，如果未被覆盖，就手动清理
clear_data(){ 
   
    current_date=`date +%F`
    current_date_timestamp=`date -d "$current_date" +%s`

    last_modified_date=`hadoop fs -ls /warehouse/gmall/dwd/$1 | grep '9999-99-99' | awk '{print $6}'`
    last_modified_date_timestamp=`date -d "$last_modified_date" +%s`

    if [[ $last_modified_date_timestamp -lt $current_date_timestamp ]]; then
        echo "clear table $1 partition(dt=9999-99-99)"
        hadoop fs -rm -r -f /warehouse/gmall/dwd/$1/dt=9999-99-99/*
    fi
}

dwd_order_info=" set hive.input.format=org.apache.hadoop.hive.ql.io.HiveInputFormat; set hive.exec.dynamic.partition.mode=nonstrict; insert overwrite table ${APP}.dwd_order_info partition(dt) select nvl(new.id,old.id), nvl(new.order_status,old.order_status), nvl(new.user_id,old.user_id), nvl(new.province_id,old.province_id), nvl(new.payment_way,old.payment_way), nvl(new.delivery_address,old.delivery_address), nvl(new.out_trade_no,old.out_trade_no), nvl(new.tracking_no,old.tracking_no), nvl(new.create_time,old.create_time), nvl(new.payment_time,old.payment_time), nvl(new.cancel_time,old.cancel_time), nvl(new.finish_time,old.finish_time), nvl(new.refund_time,old.refund_time), nvl(new.refund_finish_time,old.refund_finish_time), nvl(new.expire_time,old.expire_time), nvl(new.feight_fee,old.feight_fee), nvl(new.feight_fee_reduce,old.feight_fee_reduce), nvl(new.activity_reduce_amount,old.activity_reduce_amount), nvl(new.coupon_reduce_amount,old.coupon_reduce_amount), nvl(new.original_amount,old.original_amount), nvl(new.final_amount,old.final_amount), case when new.cancel_time is not null then date_format(new.cancel_time,'yyyy-MM-dd') when new.finish_time is not null and date_add(date_format(new.finish_time,'yyyy-MM-dd'),7)='$do_date' and new.refund_time is null then '$do_date' when new.refund_finish_time is not null then date_format(new.refund_finish_time,'yyyy-MM-dd') when new.expire_time is not null then date_format(new.expire_time,'yyyy-MM-dd') else '9999-99-99' end from ( select id, order_status, user_id, province_id, payment_way, delivery_address, out_trade_no, tracking_no, create_time, payment_time, cancel_time, finish_time, refund_time, refund_finish_time, expire_time, feight_fee, feight_fee_reduce, activity_reduce_amount, coupon_reduce_amount, original_amount, final_amount from ${APP}.dwd_order_info where dt='9999-99-99' )old full outer join ( select oi.id, oi.order_status, oi.user_id, oi.province_id, oi.payment_way, oi.delivery_address, oi.out_trade_no, oi.tracking_no, oi.create_time, times.ts['1002'] payment_time, times.ts['1003'] cancel_time, times.ts['1004'] finish_time, times.ts['1005'] refund_time, times.ts['1006'] refund_finish_time, oi.expire_time, feight_fee, feight_fee_reduce, activity_reduce_amount, coupon_reduce_amount, original_amount, final_amount from ( select * from ${APP}.ods_order_info where dt='$do_date' )oi left join ( select order_id, str_to_map(concat_ws(',',collect_set(concat(order_status,'=',operate_time))),',','=') ts from ${APP}.ods_order_status_log where dt='$do_date' group by order_id )times on oi.id=times.order_id )new on old.id=new.id;"

dwd_order_detail=" set hive.input.format=org.apache.hadoop.hive.ql.io.HiveInputFormat; insert overwrite table ${APP}.dwd_order_detail partition(dt='$do_date') select od.id, od.order_id, oi.user_id, od.sku_id, oi.province_id, oda.activity_id, oda.activity_rule_id, odc.coupon_id, od.create_time, od.source_type, od.source_id, od.sku_num, od.order_price*od.sku_num, od.split_activity_amount, od.split_coupon_amount, od.split_final_amount from ( select * from ${APP}.ods_order_detail where dt='$do_date' )od left join ( select id, user_id, province_id from ${APP}.ods_order_info where dt='$do_date' )oi on od.order_id=oi.id left join ( select order_detail_id, activity_id, activity_rule_id from ${APP}.ods_order_detail_activity where dt='$do_date' )oda on od.id=oda.order_detail_id left join ( select order_detail_id, coupon_id from ${APP}.ods_order_detail_coupon where dt='$do_date' )odc on od.id=odc.order_detail_id;"


dwd_payment_info=" set hive.input.format=org.apache.hadoop.hive.ql.io.HiveInputFormat; set hive.exec.dynamic.partition.mode=nonstrict; insert overwrite table ${APP}.dwd_payment_info partition(dt) select nvl(new.id,old.id), nvl(new.order_id,old.order_id), nvl(new.user_id,old.user_id), nvl(new.province_id,old.province_id), nvl(new.trade_no,old.trade_no), nvl(new.out_trade_no,old.out_trade_no), nvl(new.payment_type,old.payment_type), nvl(new.payment_amount,old.payment_amount), nvl(new.payment_status,old.payment_status), nvl(new.create_time,old.create_time), nvl(new.callback_time,old.callback_time), nvl(date_format(nvl(new.callback_time,old.callback_time),'yyyy-MM-dd'),'9999-99-99') from ( select id, order_id, user_id, province_id, trade_no, out_trade_no, payment_type, payment_amount, payment_status, create_time, callback_time from ${APP}.dwd_payment_info where dt = '9999-99-99' )old full outer join ( select pi.id, pi.out_trade_no, pi.order_id, pi.user_id, oi.province_id, pi.payment_type, pi.trade_no, pi.payment_amount, pi.payment_status, pi.create_time, pi.callback_time from ( select * from ${APP}.ods_payment_info where dt='$do_date' )pi left join ( select id,province_id from ${APP}.ods_order_info where dt='$do_date' )oi on pi.order_id=oi.id )new on old.id=new.id;"

dwd_cart_info=" set hive.input.format=org.apache.hadoop.hive.ql.io.HiveInputFormat; insert overwrite table ${APP}.dwd_cart_info partition(dt='$do_date') select id, user_id, sku_id, source_type, source_id, cart_price, is_ordered, create_time, operate_time, order_time, sku_num from ${APP}.ods_cart_info where dt='$do_date';"


dwd_comment_info=" set hive.input.format=org.apache.hadoop.hive.ql.io.HiveInputFormat; insert overwrite table ${APP}.dwd_comment_info partition(dt='$do_date') select id, user_id, sku_id, spu_id, order_id, appraise, create_time from ${APP}.ods_comment_info where dt='$do_date';"


dwd_favor_info=" set hive.input.format=org.apache.hadoop.hive.ql.io.HiveInputFormat; insert overwrite table ${APP}.dwd_favor_info partition(dt='$do_date') select id, user_id, sku_id, spu_id, is_cancel, create_time, cancel_time from ${APP}.ods_favor_info where dt='$do_date';"


dwd_coupon_use=" set hive.input.format=org.apache.hadoop.hive.ql.io.HiveInputFormat; set hive.exec.dynamic.partition.mode=nonstrict; insert overwrite table ${APP}.dwd_coupon_use partition(dt) select nvl(new.id,old.id), nvl(new.coupon_id,old.coupon_id), nvl(new.user_id,old.user_id), nvl(new.order_id,old.order_id), nvl(new.coupon_status,old.coupon_status), nvl(new.get_time,old.get_time), nvl(new.using_time,old.using_time), nvl(new.used_time,old.used_time), nvl(new.expire_time,old.expire_time), coalesce(date_format(nvl(new.used_time,old.used_time),'yyyy-MM-dd'),date_format(nvl(new.expire_time,old.expire_time),'yyyy-MM-dd'),'9999-99-99') from ( select id, coupon_id, user_id, order_id, coupon_status, get_time, using_time, used_time, expire_time from ${APP}.dwd_coupon_use where dt='9999-99-99' )old full outer join ( select id, coupon_id, user_id, order_id, coupon_status, get_time, using_time, used_time, expire_time from ${APP}.ods_coupon_use where dt='$do_date' )new on old.id=new.id;"

dwd_order_refund_info=" set hive.input.format=org.apache.hadoop.hive.ql.io.HiveInputFormat; insert overwrite table ${APP}.dwd_order_refund_info partition(dt='$do_date') select ri.id, ri.user_id, ri.order_id, ri.sku_id, oi.province_id, ri.refund_type, ri.refund_num, ri.refund_amount, ri.refund_reason_type, ri.create_time from ( select * from ${APP}.ods_order_refund_info where dt='$do_date' )ri left join ( select id,province_id from ${APP}.ods_order_info where dt='$do_date' )oi on ri.order_id=oi.id;"


dwd_refund_payment=" set hive.input.format=org.apache.hadoop.hive.ql.io.HiveInputFormat; set hive.exec.dynamic.partition.mode=nonstrict; insert overwrite table ${APP}.dwd_refund_payment partition(dt) select nvl(new.id,old.id), nvl(new.user_id,old.user_id), nvl(new.order_id,old.order_id), nvl(new.sku_id,old.sku_id), nvl(new.province_id,old.province_id), nvl(new.trade_no,old.trade_no), nvl(new.out_trade_no,old.out_trade_no), nvl(new.payment_type,old.payment_type), nvl(new.refund_amount,old.refund_amount), nvl(new.refund_status,old.refund_status), nvl(new.create_time,old.create_time), nvl(new.callback_time,old.callback_time), nvl(date_format(nvl(new.callback_time,old.callback_time),'yyyy-MM-dd'),'9999-99-99') from ( select id, user_id, order_id, sku_id, province_id, trade_no, out_trade_no, payment_type, refund_amount, refund_status, create_time, callback_time from ${APP}.dwd_refund_payment where dt='9999-99-99' )old full outer join ( select rp.id, user_id, order_id, sku_id, province_id, trade_no, out_trade_no, payment_type, refund_amount, refund_status, create_time, callback_time from ( select id, out_trade_no, order_id, sku_id, payment_type, trade_no, refund_amount, refund_status, create_time, callback_time from ${APP}.ods_refund_payment where dt='$do_date' )rp left join ( select id, user_id, province_id from ${APP}.ods_order_info where dt='$do_date' )oi on rp.order_id=oi.id )new on old.id=new.id;"

case $1 in
    dwd_order_info )
        hive -e "$dwd_order_info"
        clear_data dwd_order_info
    ;;
    dwd_order_detail )
        hive -e "$dwd_order_detail"
    ;;
    dwd_payment_info )
        hive -e "$dwd_payment_info"
        clear_data dwd_payment_info
    ;;
    dwd_cart_info )
        hive -e "$dwd_cart_info"
    ;;
    dwd_comment_info )
        hive -e "$dwd_comment_info"
    ;;
    dwd_favor_info )
        hive -e "$dwd_favor_info"
    ;;
    dwd_coupon_use )
        hive -e "$dwd_coupon_use"
        clear_data dwd_coupon_use
    ;;
    dwd_order_refund_info )
        hive -e "$dwd_order_refund_info"
    ;;
    dwd_refund_payment )
        hive -e "$dwd_refund_payment"
        clear_data dwd_refund_payment
    ;;
    all )
        hive -e "$dwd_order_info$dwd_order_detail$dwd_payment_info$dwd_cart_info$dwd_comment_info$dwd_favor_info$dwd_coupon_use$dwd_order_refund_info$dwd_refund_payment"
        clear_data dwd_order_info
        clear_data dwd_payment_info
        clear_data dwd_coupon_use
        clear_data dwd_refund_payment
    ;;
esac

（2）增加脚本执行权限

chmod 777 ods_to_dwd_db.sh

3.11.2使用脚本

ods_to_dwd_db.sh all 2022-04-12