ChenSongJavaCoder
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@@ -764,7 +764,7 @@ HTTP/2.0 要求客户端和服务器同时维护和更新一个包含之前见
 
 - 默认是长连接
 
-- 支持管线化处理
+- 支持流水线
 
 - 支持同时打开多个 TCP 连接
 
 
@@ -220,7 +220,7 @@ Explain 用来分析 SELECT 查询语句，开发人员可以通过分析 Explai
 一个大查询如果一次性执行的话，可能一次锁住很多数据、占满整个事务日志、耗尽系统资源、阻塞很多小的但重要的查询。
 
 ```sql
-DELEFT FROM messages WHERE create < DATE_SUB(NOW(), INTERVAL 3 MONTH);
+DELETE FROM messages WHERE create < DATE_SUB(NOW(), INTERVAL 3 MONTH);
 ```
 
 ```sql