数据库active 的相关内容

文章 2024-10-10 来自：开发者社区

数据库是mysql，使用DBeaver的SQL编辑器执行sql脚本文件时，报错：No active connection 。

遇到这种问题，多半是因为没有与数据库关联具体操作点击右键，选择与数据库关联结果如下出现这个就好了。

问答 2019-04-19 来自：开发者社区

请教一个问题，今天我们的数据库异常，active query数量激增，原因是有一个segment自动重启了。我的疑问是为什么page in/out会激增？不应该是大量active query会导致gp master 节点的内存升高？谢谢您

请教一个问题，今天我们的数据库异常，active query数量激增，原因是有一个segment自动重启了。我的疑问是为什么page in/out会激增？不应该是大量active query会导致gp master 节点的内存升高？谢谢您本问题来自云栖社区【PostgreSQL技术进阶社群】。https://yq.aliyun.com/articles/690084 点击链接欢迎加入社区...

文章 2017-11-15 来自：开发者社区

通过RMAN克隆11g数据库（基于active database）

11g的RMAN duplicate 可以通过Active databaseduplicate和Backup-based duplicate两种方法实现。这里的测试使用的是Active databaseduplicate，因为Active database duplicate 功能强大，不需要先把目标数据库进行rman备份，只要目标数据库处于归档模式下即可直接通过网络对数据库进行copy，且co....

文章 2017-11-07 来自：开发者社区

Oracle11gR2使用RMAN duplicate复制数据库——active database duplicate

11gR2的RMAN duplicate 个人感觉比10g的先进了很多，10G需要在rman备份的基础上进行复制，使用 RMAN duplicate 创建一个数据完全相同但DBID不同的数据库。而11g的RMAN duplicate 可以通过Active database duplicate和Backup-based duplicate两种方法实现。这里的测...

文章 2013-08-02 来自：开发者社区

基于RMAN从活动数据库异机克隆(rman duplicate from active DB)

Oracle 11g RMAN能够实现基于活动数据库进行异机克隆，从而省去需要先备份再ftp到辅助服务器的过程。这一切可以全部交给Oracle来搞定。在克隆期间，Oracle会读取Target DB的所有数据结构，无须人为的干预(不同的磁盘系统，文件路径与文件名要指定转换方式)。尽管如此，对于生产环境数据库在整个克隆期间性能会下降，其次...

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更新时间 2024-10-11 17:49:03

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