--目标表，更新或者插入此表merge into emp2 a using (select * from emp) b --匹配条件 on (a.empno = b.empno) --匹配时更新目标表 when matched then update set a.sal = b.sal --不匹配时插入到目标表 when not matched
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2021-09-13 09:14:19
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);
1.静态SQL与动态SQL
Ora...
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2023-04-19 03:10:53
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This article explains how to use the JRuby programming language with Oracle Database 11g Release 2. JRuby allows the Java platform and extensive libraries to be augmented with an easy to use and powerful scripting language.Software RequirementsThe following software can be used:Oracle Database 11g R
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2011-03-08 13:29:00
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原文：oracle中merge into..using..on..when..when..用法语法：Sql代码 MERGE INTO [your table-name] [rename your table here] &nb
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2015-03-25 17:17:23
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Q:When will you use raw devices in ASM?A: 1.There's no approximate asmlib for kernel of your host 2.You wanna promote I/O performance of database under your estimation compar
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2014-04-16 23:11:45
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推进使用自动管理 automatic segment1 个 Blocks = 2的幂次方倍tablespace 像一块地segment 像一个房子extents 向一个装砖头的框blocks 像砖头segment 一次性最少要分配一个 extents推荐使用 UNIFORM 在创建 extent 时.grant connect, resource to mark;create table t(id int, name char(10));注意, 执行第一个命令时无法得到empty blocks 的数值, 需要执行 analyze table t compute statistics 才能得到
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2014-04-05 16:37:00
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Understanding and Using HRMS Security in Oracle HRMS Product:Oracle Human Resources Minimum Version:11.5.9 An Oracle White Paper Abstract Under...
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2014-10-23 15:27:00
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FROM:http://blog.csdn.net/pan_tian/article/details/10159935 Oracle EBS如何与第三方系统相集成？比如这样的需求，X系统知道物料编码，需要从EBS系统里读取具体物料信息，或者X系统想把自己的人员信息同步到EBS，这类集成...
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2014-11-11 17:41:00
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How to Delete Archivelog Using RMAN in Oracle Recovery Manager (RMAN) is an Oracle Database client that performs backup and recovery tasks on your dat
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2019-08-17 17:00:00
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The full list of Oracle parallel execution features currently includes the following
Parallel Query
Parallel DML
Parallel DDL
Parallel Data Loading
Parallel Recovery
Para
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2022-01-04 14:09:47
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变化数据随时都可能生成，因此需要不断的将新的变化同步过去。有两种方法可以完成这个任务。第一种办法可以通过计划实现。例如创建一个计划，每半个小时执行一次同步接口。这样可以每半个小时将变化数据同步到目标。此法需要注意计划的重复间隔，要保证在重复调用之前，上一次调用已经完成，一般可以用于定期同步的需求。第二种办法是在创建一个包，利用ODI提供的CDC相关的工具轮询日记，一旦有了变化就调用同步接口。此法可
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2018-03-02 10:35:10
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本文介绍如何部署一个带有adg功能的shardeddatabase。1、环境介绍各个节点的角色以及数据库版本如下表所示：其中实例名是系统自己命名的。2、创建ShardCatalogDatabase这里使用静默方式在odb01上创建目录数据库。[oracle@odb01~]$vi/tmp/dbca.rspresponseFileVersion=/oracle/assistants/rspfmt_db
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2019-07-16 17:23:25
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using System.Data.OracleClient与using Oracle.D
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2023-05-16 15:15:50
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升级到FF3.6的朋友肯定发现了现在使用火狐浏览器访问my oracle support 时许多页面打开为空白页，譬如这篇介绍FF3.6与目前oracle support site兼容性的文章：
Firefox 3.6 Not Officially Supported by My Oracle Support
Although much of the functionality of My O
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2010-04-06 06:21:42
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Learn why and how Oracle Berkeley DB can bring NoSQL benefits to your app.Published February 2011“NoSQL” is the new popular buzzword among developers, architects and even technology managers. However, despite the term's newfound popularity, surprisingly there is no universally agreed-upon defini
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2011-03-07 14:33:00
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https://blogs.oracle.com/linux/using-amd-secure-memory-encryption-with-oracle-linuxGreg MarsdenOracle Linux kernel developer Boris Ostrovsky wrote this explanation of AMD's memory encryption t...
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A user-named trigger is a trigger defined in a form by the developer. User-Named triggers do not automatically fire in response to a Form Builder event, and must be called explicitly from other trigge...
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2021-07-21 11:33:31
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Oracle Management Agent (Management Agent) is one of the core components of Enterprise Manager Cloud Control that enables you to convert an unmanaged host to a managed host in the Enterprise Manager s
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2011-10-27 16:43:15
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Oracle has recently disallowed direct downloads of java from their servers (without going through the browser and agreeing to their terms, which you can look at here:http://www.oracle.com/technetwork/
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2012-12-17 16:16:22
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个人学习仅供参考！！！
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2019-10-15 16:15:55
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