- 当前位置：首页 >新闻中心 >Oracle基础教程之Merge into
Oracle基础教程之Merge into
发布时间：2025-11-04 19:24:36 来源：技术快报 作者：系统运维
复制MERGE INTO TEST_NEW DM USING ( SELECT DATE_CD,基础教程 HR_CD, DATE_HR, DECODE(GROUPING(CITY_ID), 1, 9999, CITY_ID) AS CITY_ID, DECODE(GROUPING(SYSTEM_ID), 1, -9999, SYSTEM_ID) AS SYSTEM_ID, SUM(GSM_REG_USERCNT) AS GSM_REG_USERCNT, SUM(TD_REG_USERCNT) AS TD_REG_USERCNT, SUM(TD_REG_USERRAT) AS TD_REG_USERRAT, SUM(GSM_POWERON_USERCNT) AS GSM_POWERON_USERCNT, SUM(TD_POWERON_USERCNT) AS TD_POWERON_USERCNT, SUM(TD_POWERON_USERRAT) AS TD_POWERON_USERRAT FROM TEST_OLD GROUPBY DATE_HR, DATE_CD, HR_CD, ROLLUP(SYSTEM_ID),ROLLUP(CITY_ID) ) TMP ON ( DM.DATE_CD = TMP.DATE_CD AND DM.HR_CD = TMP.HR_CD AND DM.CITY_ID = TMP.CITY_ID AND DM.SYSTEM_ID = TMP.SYSTEM_ID ) WHEN MATCHED THENUPDATESET DM.GSM_REG_USERCNT = TMP.GSM_REG_USERCNT, DM.TD_REG_USERCNT = TMP.TD_REG_USERCNT, DM.TD_REG_USERRAT = TMP.TD_REG_USERRAT, DM.GSM_POWERON_USERCNT = TMP.GSM_POWERON_USERCNT, DM.TD_POWERON_USERCNT = TMP.TD_POWERON_USERCNT, DM.TD_POWERON_USERRAT = TMP.TD_POWERON_USERRAT, DM.DATE_HR = TMP.DATE_HR WHENNOT MATCHED THEN INSERT ( DM.DATE_CD, DM.HR_CD, DM.DATE_HR, DM.CITY_ID, DM.SYSTEM_ID, DM.GSM_REG_USERCNT, DM.TD_REG_USERCNT, DM.TD_REG_USERRAT, DM.GSM_POWERON_USERCNT, DM.TD_POWERON_USERCNT, DM.TD_POWERON_USERRAT ) VALUES ( TMP.DATE_CD, TMP.HR_CD, TMP.DATE_HR, TMP.CITY_ID, TMP.SYSTEM_ID, TMP.GSM_REG_USERCNT, TMP.TD_REG_USERCNT, TMP.TD_REG_USERRAT, TMP.GSM_POWERON_USERCNT, TMP.TD_POWERON_USERCNT, TMP.TD_POWERON_USERRAT）； 1.2.3.4.5.6.7.8.9.10.11.12.13.14.15.16.17.18.19.20.21.22.23.24.25.26.27.28.29.30.31.32.33.34.35.36.37.38.39.40.41.42.43.44.45.46.47.48.49.50.51.52.53.54.55.56.57.58.59.
- Asus装机教程（亲手打造属于自己的高性能电脑，一步步学习Asus装机技巧！）
- 理想汽车公布车祸视频，泄露用户隐私了吗？
- MSSQL 的复合索引和包含索引有啥区别？
- 已下载1万次，PyPI库发现116 个恶意软件包，感染Windows 和 Linux 系统
- 如何去掉Word文档中的空白页？（简单有效的方法帮助您轻松处理Word文档中的无用空白页）
- 如何将Win7PE系统安装到硬盘？
- 分布式数据库：如何保证数据在分布式场景下的高性能？
- Ubuntu中GRUB2管理器GrubCustomizer的安装方法
- 电脑时钟错误导致无法上网的解决方法（解决电脑时钟错误，顺利上网畅享互联网世界）
- 一篇读懂分布式数据库的健康评估
随便看看
服务器租用亿华云香港云服务器源码下载IT技术网源码库益华科技IT资讯网企商汇益华IT技术论坛益强编程舍码力社益强前沿资讯益强科技亿华科技益强智未来智能时代亿华智造益强智囊团汇智坊亿华云益强资讯优选技术快报益强IT技术网极客编程益强编程堂亿华互联云智核IT资讯网科技前瞻运维纵横云站无忧码上建站亿华灵动多维IT资讯益强科技思维库益强数据堂亿华智慧云创站工坊编程之道极客码头
- Copyright © 2025 Powered by Oracle基础教程之Merge into,技术快报 滇ICP备2023006006号-46sitemap