简体中文

ALTER USER

更改一个数据库角色

概要

ALTER USER <role_specification> [WITH] <option> [ ... ]

where option can be:

      SUPERUSER | NOSUPERUSER
    | CREATEDB | NOCREATEDB
    | CREATEROLE | NOCREATEROLE
    | CREATEEXTTABLE | NOCREATEEXTTABLE 
        [ ( <attribute>='<value>'[, ...] ) ]
            where <attributes> and <value> are:
            type='readable'|'writable'
            protocol='gpfdist'|'http'
    | INHERIT | NOINHERIT
    | LOGIN | NOLOGIN
    | REPLICATION | NOREPLICATION
    | BYPASSRLS | NOBYPASSRLS
    | CONNECTION LIMIT <connlimit>
    | [ENCRYPTED ] PASSWORD '<password>' | PASSWORD NULL
    | VALID UNTIL '<timestamp>'
    | [ DENY <deny_point> ]
    | [ DENY BETWEEN <deny_point> AND <deny_point>]
    | [ DROP DENY FOR <deny_point> ]

ALTER USER <name> RENAME TO <new_name>

ALTER USER <name> RESOURCE QUEUE {<queue_name> | NONE}

ALTER USER <name> RESOURCE GROUP {<group_name> | NONE}

ALTER USER { <role_specification> | ALL } [ IN DATABASE <database_name> ] SET <configuration_parameter> {TO | =} {<value> | DEFAULT}
ALTER USER { <role_specification> | ALL } [ IN DATABASE <database_name> ] SET <configuration_parameter> FROM CURRENT
ALTER USER { <role_specification> | ALL } [ IN DATABASE <database_name> ] RESET <configuration_parameter>
ALTER USER { <role_specification> | ALL } [ IN DATABASE <database_name> ] RESET ALL

where <role_specification> can be:

    role_name
  | CURRENT_USER
  | SESSION_USER

描述

ALTER USER 现在是 ALTER ROLE 的一种别名。

兼容性

ALTER USER 语句是 YMatrix 数据库的扩展。SQL 标准将用户的定义留给了具体实现。

另见

简体中文 English Русский

ALTER USER

概要

描述

兼容性

另见

简体中文

English

Русский