101 lines
1.1 KiB
Markdown
101 lines
1.1 KiB
Markdown
DROP SYNONYM
|
|
=================================
|
|
|
|
|
|
|
|
描述
|
|
-----------
|
|
|
|
该语句用来删除一个同义词。
|
|
|
|
|
|
|
|
格式
|
|
-----------
|
|
|
|
```javascript
|
|
DROP [PUBLIC] SYNONYM [ DATABASE. ]synonym;
|
|
```
|
|
|
|
|
|
|
|
|
|
|
|
参数说明
|
|
-------------
|
|
|
|
* PUBLIC
|
|
|
|
指定PUBLIC来删除公共同义词；如果不指定PUBLIC，则删除私有同义词。
|
|
|
|
|
|
|
|
|
|
|
|
<!-- -->
|
|
|
|
* \[ DATABASE. \]synonym
|
|
|
|
DATABASE指定当前同义词属于哪个DataBase，如果指定了PUBLIC，则对同义词不需要指定DataBase；synonym表示同义词的名称。
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
举例
|
|
-----------
|
|
|
|
* 删除一个同义词。
|
|
|
|
|
|
|
|
|
|
```javascript
|
|
OceanBase(admin@test)>drop synonym test.s1;
|
|
Query OK, 0 rows affected (0.03 sec)
|
|
```
|
|
|
|
|
|
|
|
* 删除一个PUBLIC同义词
|
|
|
|
|
|
|
|
|
|
```javascript
|
|
OceanBase(admin@test)>drop public synonym syn_pub;
|
|
Query OK, 0 rows affected (0.02 sec)
|
|
```
|
|
|
|
|
|
|
|
|
|
|
|
### 注意事项
|
|
|
|
**注意**
|
|
|
|
|
|
|
|
* 删除私有同义词时，需要满足要删除的synonym在对应DataBase下并要有DROP ANY SYNONYM权限。
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<!-- -->
|
|
|
|
* 删除公共同义词时，需要有DROP PUBLIC SYNONYM权限 。
|
|
|
|
|
|
|
|
* 删除public synonym时，必须指定PUBLIC关键字，且不能指定DataBase。
|
|
|
|
|
|
|
|
|
|
|