oracle数据库的相关内容

文章 2017-09-28 来自：开发者社区

【Oracle】使用hanganalyze 命令分析数据库hang【转】

1. 数据库hang的几种可能性 oracle 死锁或者系统负载非常高比如cpu使用或其他一些锁等待很高都可能导致系统hang住，比如大量的DX锁。通常来说，我们所指的系统hang住，是指应用无响应，普通的sqlplus几乎无法操作等等。 2. 如何进行hang分析？hang分析有哪些level？如何选择level？ hanganalyze有如下几种level： 10 &n...

文章 2017-09-22 来自：开发者社区

Delphi 程序错误写法造成Oracle数据库负载异常

本文讲的是Delphi 程序错误写法造成Oracle数据库负载异常作者介绍张洪涛富士康 DBA注意：本文涉及的问题在9i的环境中测试的，经验证，同样适用于11g. 在用Toad的SGA Trace工具监控我们的Oracle 9.2.0.8 Patch 31古董数据库时发现一条奇怪的SQL，它占到数据库整体逻辑读50%以上，SQL如下：这条SQL单次执行逻辑读不到900，但执行非常频繁，它.....

问答 2017-09-20 来自：开发者社区

谁有在esc linux实例上安装oracle数据库的教程

文章 2017-09-15 来自：开发者社区

Oracle数据库设置为归档模式的操作方法

Oracle归档模式非常非常重要！对于有些数据库刚装好后可能是非归档模式，这是很危险的！为了安全起见，一定要谨记：对于Oracle数据库，一定要设置为归档模式，尤其是生产库，只有这样才能实现数据库的有效完全恢复！下面介绍下将Oracle数据库设置为归档模式的操作方法： 1）以sysdba身份连接数据库 1 2 3 [root@kevin ~]# su - oracle 以D...

文章 2017-09-14 来自：开发者社区

Oracle 12c数据库优化器统计信息收集的最佳实践

Oracle 12c数据库优化器统计信息收集的最佳实践转载自沃趣科技（ID：woqutech）作者刘金龙（译）原文链接 http://www.oracle.com/technetwork/database/bi-datawarehousing/twp-bp-f...

问答 2017-09-11 来自：开发者社区

oracle数据库链接不释放

在web端高并发的情况下数据库链接数据库会彪的很高，比如我web连接池设置的最大链接数是50 ，彪高时数据库端看到的链接数达到23百，已排除连接池链接泄露，这时候即使把web关掉，数据库链接也要等10-30分钟才开始释放。能解决者必重谢

问答 2017-09-11 来自：开发者社区

oracle数据库链接不释放（重金求解）

问答 2017-09-11 来自：开发者社区

oracle数据库链接长时间不释放（重金求解决）

问答 2017-09-08 来自：开发者社区

ecs该怎么安装Oracle数据库啊，为什么安装失败呢

swap空间为0，安装Oracle失败

文章 2017-09-08 来自：开发者社区

Oracle连接MongoDB数据库

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