sql

deipss · Mar 5, 2024 · 15cb5bb · 15cb5bb
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diff --git a/docs/Database/Redis.md b/docs/Database/Redis.md
@@ -81,10 +81,10 @@ redis启动时会加载这个.aof文件重新构建数据。为避免.aof文件
 ## 3.3. List
 
 ### 定义
-![img.png](list-define.png)
+![img.png](img/list-define.png)
 
 ### 特性
-![img.png](list-feature.png)
+![img.png](img/list-feature.png)
 
 - 基于List的消息队列的优劣：
     - 可以满足消息的有序性

diff --git a/docs/Database/list-define.png → docs/Database/img/list-define.png b/docs/Database/list-define.png → docs/Database/img/list-define.png
diff --git a/docs/Database/list-feature.png → docs/Database/img/list-feature.png b/docs/Database/list-feature.png → docs/Database/img/list-feature.png
diff --git a/docs/Database/mysql常用SQL.md b/docs/Database/mysql常用SQL.md
@@ -50,4 +50,15 @@ select date_add(@dt, interval 1 quarter);
 select date_add(@dt, interval 1 year);
 
 select date_add(@dt, interval -1 day); -- sub 1 day
+```
+
+# 实用SQL
+
+一个SQL查询出每门课程的成绩都大于80的学生姓名
+
+```sql
+select name
+from SC
+group by name
+having min(score) > 80
 ```