oracle sql语句练习题
时间: 2023-10-12 14:13:33 浏览: 95
好的,以下是一些 Oracle SQL 练习题,希望能对您有所帮助:
1. 查询表中的所有记录:
```
SELECT * FROM table_name;
```
2. 查询表中的特定字段:
```
SELECT column_name1, column_name2, ... FROM table_name;
```
3. 查询表中的字段,并按照特定的字段排序:
```
SELECT column_name1, column_name2, ... FROM table_name ORDER BY column_name;
```
4. 查询表中的记录,并按照特定的字段进行分组:
```
SELECT column_name1, column_name2, ... FROM table_name GROUP BY column_name;
```
5. 查询表中特定条件下的记录:
```
SELECT * FROM table_name WHERE condition;
```
6. 查询表中特定字段,并在满足特定条件的情况下进行排序:
```
SELECT column_name1, column_name2, ... FROM table_name WHERE condition ORDER BY column_name;
```
7. 查询表中特定字段,并在满足特定条件的情况下进行分组:
```
SELECT column_name1, column_name2, ... FROM table_name WHERE condition GROUP BY column_name;
```
8. 查询表中特定字段的计数:
```
SELECT COUNT(column_name) FROM table_name;
```
9. 查询表中特定字段的平均值:
```
SELECT AVG(column_name) FROM table_name;
```
10. 查询表中特定字段的最大值:
```
SELECT MAX(column_name) FROM table_name;
```
11. 查询表中特定字段的最小值:
```
SELECT MIN(column_name) FROM table_name;
```
希望这些练习题能够帮助到您。
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