云数据库 GAUSSDB-ALTER DEFAULT PRIVILEGES:语法格式

时间：2025-07-25 09:28:55

云数据库 GAUSSDB

语法格式

  
       ALTER DEFAULT PRIVILEGES
    [ FOR { ROLE | USER } target_role [, ...] ]
    [ IN SCHEMA schema_name [, ...] ]
    abbreviated_grant_or_revoke;

其中abbreviated_grant_or_revoke子句用于指定对哪些对象进行授权或回收权限。

    
         grant_on_tables_clause
  | grant_on_sequences_clause
  | grant_on_functions_clause
  | grant_on_types_clause
  | grant_on_client_master_keys_clause
  | grant_on_column_encryption_keys_clause
  | revoke_on_tables_clause
  | revoke_on_sequences_clause
  | revoke_on_functions_clause
  | revoke_on_types_clause
  | revoke_on_client_master_keys_clause
  | revoke_on_column_encryption_keys_clause

其中grant_on_tables_clause子句用于对表授权。

    
         GRANT { { SELECT | INSERT | UPDATE | DELETE | TRUNCATE | REFEREN CES  | ALTER | DROP | COMMENT | INDEX | VACUUM } 
    [, ...] | ALL [ PRIVILEGES ] }
    ON TABLES 
    TO { [ GROUP ] role_name | PUBLIC } [, ...]
    [ WITH GRANT OPTION ]

其中grant_on_sequences_clause子句用于对序列授权。

    
         GRANT { { SELECT | UPDATE | USAGE | ALTER | DROP | COMMENT } 
    [, ...] | ALL [ PRIVILEGES ] }
    ON SEQUENCES 
    TO { [ GROUP ] role_name | PUBLIC } [, ...]
    [ WITH GRANT OPTION ]

其中grant_on_functions_clause子句用于对函数授权。

    
         GRANT { { EXECUTE | ALTER | DROP | COMMENT } [, ...] | ALL [ PRIVILEGES ] }
    ON FUNCTIONS 
    TO { [ GROUP ] role_name | PUBLIC } [, ...]
    [ WITH GRANT OPTION ]

其中grant_on_types_clause子句用于对类型授权。

    
         GRANT { { USAGE | ALTER | DROP | COMMENT } [, ...] | ALL [ PRIVILEGES ] }
    ON TYPES 
    TO { [ GROUP ] role_name | PUBLIC } [, ...]
    [ WITH GRANT OPTION ]

其中grant_on_client_master_keys_clause子句用于对客户端主密钥授权。

GRANT { { USAGE  | DROP } [, ...] | ALL [ PRIVILEGES ] }
    ON CLIENT_MASTER_KEYS
    TO { [ GROUP ] role_name | PUBLIC } [, ...]
    [ WITH GRANT OPTION ]

其中grant_on_column_encryption_keys_clause子句用于对列加密密钥授权。

GRANT { { USAGE | DROP } [, ...] | ALL [ PRIVILEGES ] }
    ON COLUMN_ENCRYPTION_KEYS 
    TO { [ GROUP ] role_name | PUBLIC } [, ...]
    [ WITH GRANT OPTION ]

其中revoke_on_tables_clause子句用于回收表对象的权限。

    
         REVOKE [ GRANT OPTION FOR ]
    { { SELECT | INSERT | UPDATE | DELETE | TRUNCATE | REFERENCES | ALTER | DROP | COMMENT | INDEX | VACUUM } 
    [, ...] | ALL [ PRIVILEGES ] }
    ON TABLES 
    FROM { [ GROUP ] role_name | PUBLIC } [, ...]
    [ CASCADE | RESTRICT | CASCADE CONSTRAINTS ]

其中revoke_on_sequences_clause子句用于回收序列的权限。

    
         REVOKE [ GRANT OPTION FOR ]
    { { SELECT | UPDATE | USAGE | ALTER | DROP | COMMENT } 
    [, ...] | ALL [ PRIVILEGES ] }
    ON SEQUENCES
    FROM { [ GROUP ] role_name | PUBLIC } [, ...]
    [ CASCADE | RESTRICT | CASCADE CONSTRAINTS ]

其中revoke_on_functions_clause子句用于回收函数的权限。

    
         REVOKE [ GRANT OPTION FOR ]
    { { EXECUTE | ALTER | DROP | COMMENT } [, ...] | ALL [ PRIVILEGES ] }
    ON FUNCTIONS 
    FROM { [ GROUP ] role_name | PUBLIC } [, ...]
    [ CASCADE | RESTRICT | CASCADE CONSTRAINTS ]

其中revoke_on_types_clause子句用于回收类型的权限。

    
         REVOKE [ GRANT OPTION FOR ]
    { { USAGE | ALTER | DROP | COMMENT } [, ...] | ALL [ PRIVILEGES ] }
    ON TYPES 
    FROM { [ GROUP ] role_name | PUBLIC } [, ...]
    [ CASCADE | RESTRICT | CASCADE CONSTRAINTS ]

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