From 83e29192b415de8d9384488cfb14eaba99d609d8 Mon Sep 17 00:00:00 2001 From: wangtong Date: Wed, 20 Apr 2022 15:09:00 +0800 Subject: [PATCH] =?UTF-8?q?[=E4=BF=AE=E6=94=B9]=EF=BC=9A=E4=BF=AE=E6=94=B9?= =?UTF-8?q?=20MySQL=E4=BA=8B=E5=8A=A1=E9=9A=94=E7=A6=BB=E7=BA=A7=E5=88=AB?= =?UTF-8?q?=E8=AF=A6=E8=A7=A3=20=E5=85=B3=E4=BA=8E=E5=B9=BB=E8=AF=BB?= =?UTF-8?q?=E7=9A=84=E6=A1=88=E4=BE=8B=E6=BC=94=E7=A4=BA=E5=92=8C=E8=A7=A3?= =?UTF-8?q?=E5=86=B3=E6=96=B9=E6=A1=88?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- docs/database/mysql/transaction-isolation-level.md | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/docs/database/mysql/transaction-isolation-level.md b/docs/database/mysql/transaction-isolation-level.md index bdd5072d..7f20ff19 100644 --- a/docs/database/mysql/transaction-isolation-level.md +++ b/docs/database/mysql/transaction-isolation-level.md @@ -127,11 +127,14 @@ SET [SESSION|GLOBAL] TRANSACTION ISOLATION LEVEL [READ UNCOMMITTED|READ COMMITTE
+ #### 幻读 ##### 演示幻读出现的情况 -![](http://101.43.132.98:98/images/phantom_read.png) +
+ +
sql 脚本1 在第一次查询工资为 500 的记录时只有一条,sql 脚本 2 插入了一条工资为 500 的记录,提交之后;sql 脚本 1 在同一个事务中再次使用当前读查询发现出现了两条工资为 500 的记录这种就是幻读。