From ce1663acdf135fa02d552ef041601802b62d2e2d Mon Sep 17 00:00:00 2001 From: liushaohui1 <33222816+liushaohui1@users.noreply.github.com> Date: Tue, 21 Jun 2022 19:19:22 +0800 Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E5=A4=8D=E9=94=99=E5=88=AB=E5=AD=97?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- docs/mysql-2.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/docs/mysql-2.md b/docs/mysql-2.md index 853c0b0..5664ee6 100644 --- a/docs/mysql-2.md +++ b/docs/mysql-2.md @@ -24,7 +24,7 @@ ![整体流程](https://raw.githubusercontent.com/qiurunze123/imageall/master/mysql1.png) ID列:数据为一组数字表示执行select语句的顺序 - id值相同的时候执行顺数由上至下 + id值相同的时候执行顺序由上至下 id值越大优先级越高,越先被执行 ID列中的如果数据为一组数字,表示执行SELECT语句的顺序;如果为NULL,则说明这一行数据是由另外两个SQL语句进行 UNION操作后产生的结果集