GaussDB-REVOKEGaussDB-REVOKE 功能描述 REVOKE用于撤销一个或多个角色的权限。注意事项

GaussDB-REVOKE

功能描述

REVOKE用于撤销一个或多个角色的权限。

注意事项

非对象所有者试图在对象上REVOKE权限，命令按照以下规则执行：

如果授权用户没有该对象上的权限，则命令立即失败。
如果授权用户有部分权限，则只撤销那些有授权选项的权限。
如果授权用户没有授权选项，REVOKE ALL PRIVILEGES形式将发出一个错误信息，而对于其他形式的命令而言，如果是命令中指定名称的权限没有相应的授权选项，该命令将发出一个警告。

语法格式

回收指定表或视图上权限。

| ``` REVOKE [ GRANT OPTION FOR ] { { SELECT | INSERT | UPDATE | DELETE | TRUNCATE | REFERENCES | ALTER | DROP | COMMENT | INDEX | VACUUM }[, ...] | ALL [ PRIVILEGES ] } ON { [ TABLE ] table_name [, ...] | ALL TABLES IN SCHEMA schema_name [, ...] } FROM { [ GROUP ] role_name | PUBLIC } [, ...] [ CASCADE | RESTRICT ];
```
| ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
```
回收表上指定字段权限。

| ``` REVOKE [ GRANT OPTION FOR ] { {{ SELECT | INSERT | UPDATE | REFERENCES | COMMENT } ( column_name [, ...] )}[, ...] | ALL [ PRIVILEGES ] ( column_name [, ...] ) } ON [ TABLE ] table_name [, ...] FROM { [ GROUP ] role_name | PUBLIC } [, ...] [ CASCADE | RESTRICT ];
```
| ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
```
回收指定序列上权限。

| ``` REVOKE [ GRANT OPTION FOR ] { { SELECT | UPDATE | ALTER | DROP | COMMENT }[, ...] | ALL [ PRIVILEGES ] } ON { [ SEQUENCE ] sequence_name [, ...] | ALL SEQUENCES IN SCHEMA schema_name [, ...] } FROM { [ GROUP ] role_name | PUBLIC } [, ...] [ CASCADE | RESTRICT ];
```
| ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
```
回收指定数据库上权限。

| ``` REVOKE [ GRANT OPTION FOR ] { { CREATE | CONNECT | TEMPORARY | TEMP | ALTER | DROP | COMMENT } [, ...] | ALL [ PRIVILEGES ] } ON DATABASE database_name [, ...] FROM { [ GROUP ] role_name | PUBLIC } [, ...] [ CASCADE | RESTRICT ];
```
| ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
```
回收指定域上权限。

| ``` REVOKE [ GRANT OPTION FOR ] { USAGE | ALL [ PRIVILEGES ] } ON DOMAIN domain_name [, ...] FROM { [ GROUP ] role_name | PUBLIC } [, ...] [ CASCADE | RESTRICT ];
```
| --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
```
回收指定客户端加密主密钥上的权限。

| ``` REVOKE [ GRANT OPTION FOR ] { { USAGE | DROP } [, ...] | ALL [PRIVILEGES] } ON CLIENT_MASTER_KEYS client_master_keys_name [, ...] FROM { [ GROUP ] role_name | PUBLIC } [, ...] [ CASCADE | RESTRICT ];
```
| -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
```
回收指定列加密密钥上的权限。

| ``` REVOKE [ GRANT OPTION FOR ] { { USAGE | DROP } [, ...] | ALL [PRIVILEGES]} ON COLUMN_ENCRYPTION_KEYS column_encryption_keys_name [, ...] FROM { [ GROUP ] role_name | PUBLIC } [, ...] [ CASCADE | RESTRICT ];
```
| --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
```
回收指定目录上权限。

| ``` REVOKE [ GRANT OPTION FOR ] { { READ | WRITE | ALTER | DROP } [, ...] | ALL [ PRIVILEGES ] } ON DIRECTORY directory_name [, ...] FROM { [ GROUP ] role_name | PUBLIC } [, ...] [ CASCADE | RESTRICT ];
```
| ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
```
回收指定外部数据源上权限。

| ``` REVOKE [ GRANT OPTION FOR ] { USAGE | ALL [ PRIVILEGES ] } ON FOREIGN DATA WRAPPER fdw_name [, ...] FROM { [ GROUP ] role_name | PUBLIC } [, ...] [ CASCADE | RESTRICT ];
```
| ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
```
回收指定外部服务器上权限。

| ``` REVOKE [ GRANT OPTION FOR ] { { USAGE | ALTER | DROP | COMMENT } [, ...] | ALL [ PRIVILEGES ] } ON FOREIGN SERVER server_name [, ...] FROM { [ GROUP ] role_name | PUBLIC } [, ...] [ CASCADE | RESTRICT ];
```
| ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
```
回收指定函数上权限。

| ``` REVOKE [ GRANT OPTION FOR ] { { EXECUTE | ALTER | DROP | COMMENT } [, ...] | ALL [ PRIVILEGES ] } ON { FUNCTION {function_name ( [ {[ argmode ] [ arg_name ] arg_type} [, ...] ] )} [, ...] | ALL FUNCTIONS IN SCHEMA schema_name [, ...] } FROM { [ GROUP ] role_name | PUBLIC } [, ...] [ CASCADE | RESTRICT ];
```
| ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
```
回收指定存储过程上权限。

| ``` REVOKE [ GRANT OPTION FOR ] { { EXECUTE | ALTER | DROP | COMMENT } [, ...] | ALL [ PRIVILEGES ] } ON { PROCEDURE {proc_name ( [ {[ argmode ] [ arg_name ] arg_type} [, ...] ] )} [, ...] | ALL PROCEDURE IN SCHEMA schema_name [, ...] } FROM { [ GROUP ] role_name | PUBLIC } [, ...] [ CASCADE | RESTRICT ];
```
| ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
```
回收指定过程语言上权限。

| ``` REVOKE [ GRANT OPTION FOR ] { USAGE | ALL [ PRIVILEGES ] } ON LANGUAGE lang_name [, ...] FROM { [ GROUP ] role_name | PUBLIC } [, ...] [ CASCADE | RESTRICT ];
```
| -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
```
回收指定大对象上权限。

| ``` REVOKE [ GRANT OPTION FOR ] { { SELECT | UPDATE } [, ...] | ALL [ PRIVILEGES ] } ON LARGE OBJECT loid [, ...] FROM { [ GROUP ] role_name | PUBLIC } [, ...] [ CASCADE | RESTRICT ];
```
| ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
```
回收指定模式上权限。

| ``` REVOKE [ GRANT OPTION FOR ] { { CREATE | USAGE | ALTER | DROP | COMMENT } [, ...] | ALL [ PRIVILEGES ] } ON SCHEMA schema_name [, ...] FROM { [ GROUP ] role_name | PUBLIC } [, ...] [ CASCADE | RESTRICT ];
```
| ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
```
回收指定表空间上权限。

| ``` REVOKE [ GRANT OPTION FOR ] { { CREATE | ALTER | DROP | COMMENT } [, ...] | ALL [ PRIVILEGES ] } ON TABLESPACE tablespace_name [, ...] FROM { [ GROUP ] role_name | PUBLIC } [, ...] [ CASCADE | RESTRICT ];
```
| -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
```
回收指定类型上权限。

| ``` REVOKE [ GRANT OPTION FOR ] { { USAGE | ALTER | DROP | COMMENT } [, ...] | ALL [ PRIVILEGES ] } ON TYPE type_name [, ...] FROM { [ GROUP ] role_name | PUBLIC } [, ...] [ CASCADE | RESTRICT ];
```
| ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
```

回收指定子集群上权限。

| ``` REVOKE [ GRANT OPTION FOR ] { { CREATE | USAGE | COMPUTE | ALTER | DROP } [, ...] | ALL [ PRIVILEGES ] } ON NODE GROUP group_name [, ...] FROM { [ GROUP ] role_name | PUBLIC } [, ...] [ CASCADE | RESTRICT ];

| ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |

![](https://p6-xtjj-sign.byteimg.com/tos-cn-i-73owjymdk6/cd6a60d20dff4bf8bba5a500fb9cb80b~tplv-73owjymdk6-jj-mark-v1:0:0:0:0:5o6Y6YeR5oqA5pyv56S-5Yy6IEAgamVycnl3YW5nMTk4Mw==:q75.awebp?rk3s=f64ab15b&x-expires=1771810778&x-signature=x1%2B%2FQbFLFSWd8KzNAuGP5XBeGxc%3D)

回收子集群的create权限时，会默认回收usage和compute权限。

回收directory对象的权限。

| ``` REVOKE [ GRANT OPTION FOR ] { { READ | WRITE } [, ...] | ALL [PRIVILEGES] } ON DIRECTORY directory_name [, ...] FROM {[GROUP] role_name | PUBLIC} [, ...] [ CASCADE | RESTRICT ];
```
| ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
```
按角色回收角色上的权限。

| ``` REVOKE [ ADMIN OPTION FOR ] role_name [, ...] FROM role_name [, ...] [ CASCADE | RESTRICT ];
```
| ------------------------------------------------------------------------------------------------------------- |
```
回收角色上的sysadmin权限。

| ``` REVOKE ALL { PRIVILEGES | PRIVILEGE } FROM role_name;
```
| -------------------------------------------------------------- |
```
回收ANY权限。

| ``` REVOKE [ ADMIN OPTION FOR ] { CREATE ANY TABLE | ALTER ANY TABLE | DROP ANY TABLE | SELECT ANY TABLE | INSERT ANY TABLE | UPDATE ANY TABLE | DELETE ANY TABLE | CREATE ANY SEQUENCE | CREATE ANY INDEX | CREATE ANY FUNCTION | EXECUTE ANY FUNCTION | CREATE ANY TYPE | ALTER ANY TYPE | DROP ANY TYPE | ALTER ANY SEQUENCE | DROP ANY SEQUENCE | SELECT ANY SEQUENCE | ALTER ANY INDEX | DROP ANY INDEX | CREATE ANY SYNONYM | DROP ANY SYNONYM | CREATE ANY TRIGGER | ALTER ANY TRIGGER | DROP ANY TRIGGER } [, ...] FROM [ GROUP ] role_name [, ...];
```
| ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
```

回收DATABASE LINK对象权限。

REVOKE { CREATE | ALTER | DROP } [PUBLIC] DATABASE LINK FROM role_name;

DATABASE LINK详细说明请参见DATABASE LINK。

回收PUBLIC同义词的权限。
```
REVOKE { CREATE | DROP } PUBLIC SYNONYM FROM role_name; 
```
通过内置角色（gs_role_public_synonym_create、gs_role_public_synonym_drop）的方式也可以实现回收PUBLIC同义词的权限。
- 回收创建PUBLIC同义词权限：
```
REVOKE gs_role_public_synonym_create FROM role_name；
```
- 回收删除PUBLIC同义词权限：
```
REVOKE gs_role_public_synonym_drop FROM role_name；
```

参数说明

关键字PUBLIC表示一个隐式定义的拥有所有角色的组。

权限类别和参数说明，请参见GRANT的参数说明。

任何特定角色拥有的特权包括直接授予该角色的特权、从该角色作为其成员的角色中得到的权限以及授予给PUBLIC的权限。因此，从PUBLIC收回SELECT特权并不一定会意味着所有角色都会失去在该对象上的SELECT特权，那些直接被授予的或者通过另一个角色被授予的角色仍然会拥有它。类似地，从一个用户收回SELECT后，如果PUBLIC仍有SELECT权限，该用户还是可以使用SELECT。

指定GRANT OPTION FOR时，只撤销对该权限授权的权力，而不撤销该权限本身。

如用户A拥有某个表的UPDATE权限，及WITH GRANT OPTION选项，同时A把这个权限赋予了用户B，则用户B持有的权限称为依赖性权限。当用户A持有的权限或者授权选项被撤销时，依赖性权限仍然存在，但如果声明了CASCADE，则所有依赖性权限都被撤销。

一个用户只能撤销由它自己直接赋予的权限。例如，如果用户A被指定授权（WITH ADMIN OPTION）选项，且把一个权限赋予了用户B，然后用户B又赋予了用户C，则用户A不能直接将C的权限撤销。但是，用户A可以撤销用户B的授权选项，并且使用CASCADE。这样，用户C的权限就会自动被撤销。另外一个例子：如果A和B都赋予了C同样的权限，则A可以撤销他自己的授权选项，但是不能撤销B的，因此C仍然拥有该权限。

如果执行REVOKE的角色持有的权限是通过多层成员关系获得的，则具体是哪一个包含的角色执行的该命令是不确定的。在这种场合下，建议的方法是使用SET ROLE成为特定角色，然后执行REVOKE，否则可能导致删除了不想删除的权限，或者是任何权限都没有删除。

示例

从用户tom收回角色jerry的权限：

| ``` gaussdb=# REVOKE jerry FROM tom; REVOKE ROLE
```
| ----------------------------------------------------- |
```

从用户tom收回对模式jerry下表t1的SELECT权限：

| ``` gaussdb=# REVOKE SELECT ON TABLE jerry.t1 FROM tom; REVOKE
```
| ------------------------------------------------------------------- |
```

从用户tom收回对模式jerry下函数fun1的EXECUTE权限：

| ``` gaussdb=# REVOKE EXECUTE ON FUNCTION jerry.fun1() FROM tom; REVOKE
```
| --------------------------------------------------------------------------- |
```

从用户tom收回对数据库DB1的CONNECT权限：

| ``` gaussdb=# REVOKE CONNECT ON database DB1 FROM tom; REVOKE
```
| ------------------------------------------------------------------ |
```

更多示例请参见GRANT的示例。

GaussDB-REVOKE

GaussDB-REVOKE

功能描述

注意事项

语法格式

参数说明

示例

相关链接