From 3ff5e489c7dd66a573201b472967cd32e413c3c4 Mon Sep 17 00:00:00 2001
From: mba1398 <26516464+mba1398@users.noreply.github.com>
Date: Mon, 12 Jul 2021 16:24:29 +0800
Subject: [PATCH] =?UTF-8?q?Update=20ch07:=20=E7=A7=8B=E6=8B=9B=E7=A7=98?=
 =?UTF-8?q?=E7=B1=8D=20B.md?=
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Content-Type: text/plain; charset=UTF-8
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---
 ch07: 秋招秘籍 B.md | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/ch07: 秋招秘籍 B.md b/ch07: 秋招秘籍 B.md
index 111c607..5ef05d2 100644
--- a/ch07: 秋招秘籍 B.md	
+++ b/ch07: 秋招秘籍 B.md	
@@ -77,5 +77,7 @@ a. 2021年有多少个明星主播日？
 
 b. 2021年有多少个明星主播？
 
+# 练习四：MySQL 中如何查看sql语句的执行计划？可以看到哪些信息？
+