DI编程客栈STINCT简介: DISTINCT 是 SQL 中用来返回唯一不重复结果集的关键字。它通常用于 SELECT 语句中,可以指定一个或多个列进行去重,并返回唯一的结果。当你在使用 SELECT 查询数据时,可能会得到包含重复行的
目录sql distinct多个字段distinct注意sql distinct显示多个字段,去重复总结sql distinct多个字段
I have one of my activities which I would like to prevent from rotating because I\'m starting an AsyncTask, and screen rotation makes it restart.