数据库高级应用的相关内容

文章 2022-02-16 来自：开发者社区

数据库语句高级应用之修改数据库兼容版本

数据库在项目开发中几乎是必不可少的元素，sql Server 相信大家都特别熟悉吧，那么是否遇到过这样一个问题呢：在分析数据库或者部署数据库的时候，出现了数据库不兼容的问题。拿到的是08或者12版本的数据库，结果部署的服务器只装有05或08的sqlserver，一个小小的兼容问题是不是很让有头疼啊。通用的解决方案是：导出数据库脚本，备份数据库。然后在Sql Server 2005或08的...

文章 2022-02-16 来自：开发者社区

07_NoSQL数据库之Redis数据库：Redis的高级应用之事务处理、持久化操作、pub_sub、虚拟内存

事务处理 Redis对事务的支持目前还比较简单。Redis只能保证一个client发起的事务中的命令可以连续的执行，而中间不会插入其他client的命令。当一个client在一个连接中发出multi命令时，这个连接会进入一个事务上下文，该连接后续的命令不会立即执行，而是先放到一个队列中，当执行exec命令时，redis会顺序的执行队列中的所有命令。 127.0.0.1:...

文章 2022-02-16 来自：开发者社区

06_NoSQL数据库之Redis数据库：Redis的高级应用之登录授权和主从复制

Redis高级实用特征安全性（登录授权和登录后使用auth授权）设置客户端连接后进行任何其他指定前需要使用的密码。警告：因为redis速度相当快，所以在一台比较好的服务器下，一个外部的用户可以在一秒中进行150k次的密码尝试，这意味着你需要指定非常非常强大的密码来防止暴力破解。修改密码只需要在我们的配置文件中修改下面参数： #requirepass fo...

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更新时间 2024-06-01 17:33:41

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