From 3348b201d17d71d544ec96f3e5a664ac978390ab Mon Sep 17 00:00:00 2001 From: CyC2018 Date: Sat, 7 Dec 2019 21:37:23 +0800 Subject: [PATCH] auto commit --- docs/notes/数据库系统原理.md | 5 +---- notes/pics/image-20191207213523777.png | Bin 0 -> 26254 bytes notes/数据库系统原理.md | 5 +---- 3 files changed, 2 insertions(+), 8 deletions(-) create mode 100644 notes/pics/image-20191207213523777.png diff --git a/docs/notes/数据库系统原理.md b/docs/notes/数据库系统原理.md index bd2fe0f6..7b84e897 100644 --- a/docs/notes/数据库系统原理.md +++ b/docs/notes/数据库系统原理.md @@ -145,10 +145,7 @@ MySQL 中提供了两种封锁粒度:行级锁以及表级锁。 锁的兼容关系如下: -| - | X | S | -| :--: | :--: | :--: | -| **X** |×|×| -| **S** |×|√| +

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### 2. 意向锁