diff --git "a/SQL/230.SQL \345\205\245\351\227\250.md" "b/SQL/231.SQL \345\205\245\351\227\250.md"
similarity index 100%
rename from "SQL/230.SQL \345\205\245\351\227\250.md"
rename to "SQL/231.SQL \345\205\245\351\227\250.md"
diff --git a/readme.md b/readme.md
index 62b07e66..31dd7787 100644
--- a/readme.md
+++ b/readme.md
@@ -6,7 +6,7 @@
 
 前端界的好文精读，每周更新！
 
-最新精读：<a href="./SQL/230.SQL%20%E5%85%A5%E9%97%A8.md">230.SQL 入门</a>
+最新精读：<a href="./SQL/230.SQL%20%E5%85%A5%E9%97%A8.md">231.SQL 入门</a>
 
 素材来源：[周刊参考池](https://github.com/ascoders/weekly/issues/2)
 
@@ -269,7 +269,7 @@
 
 ### SQL
 
-- <a href="./SQL/230.SQL%20%E5%85%A5%E9%97%A8.md">230.SQL 入门</a>
+- <a href="./SQL/231.SQL%20%E5%85%A5%E9%97%A8.md">231.SQL 入门</a>
 
 ## 关注前端精读微信公众号