From 804646780cc8041886a46a49a74b0fc911efcc9e Mon Sep 17 00:00:00 2001
From: liuyiwei <709224218@qq.com>
Date: Sat, 11 Mar 2023 09:21:18 +0800
Subject: [PATCH] vault backup: 2023-03-11 09:21:18

Affected files:
notes/programming/MVCC.md
---
 notes/programming/MVCC.md | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/notes/programming/MVCC.md b/notes/programming/MVCC.md
index 380afce..342a00f 100644
--- a/notes/programming/MVCC.md
+++ b/notes/programming/MVCC.md
@@ -13,6 +13,11 @@ date modified: 2022-08-10, 16:58:05
 
 ---
 
+# 作用
+
+实现并发事务之间的隔离性。
+
+
 # 背景知识
 
 使用 InnoDB 的表 B+ 树叶子节点中每条记录都有如下两个字段：