CREATE USER

CREATE USER

默认情况下，使用LOGIN权限定义一个新的数据库角色。

语法

``` sql CREATE USER name [[WITH] option [ … ]]

其中`option`可以是：

``` sql
      SUPERUSER | NOSUPERUSER
    | CREATEDB | NOCREATEDB
    | CREATEROLE | NOCREATEROLE
    | CREATEUSER | NOCREATEUSER
    | CREATEEXTTABLE | NOCREATEEXTTABLE 
      [ ( attribute='value'[, ...] ) ]
           where attributes and value are:
           type='readable'|'writable'
           protocol='scfs'|'http'
    | INHERIT | NOINHERIT
    | LOGIN | NOLOGIN
    | REPLICATION | NOREPLICATION
    | CONNECTION LIMIT connlimit
    | [ ENCRYPTED | UNENCRYPTED ] PASSWORD 'password'
    | VALID UNTIL 'timestamp'
    | IN ROLE role_name [, ...]
    | IN GROUP role_name
    | ROLE role_name [, ...]
    | ADMIN role_name [, ...]
    | USER role_name [, ...]
    | SYSID uid
    | RESOURCE GROUP group_name
    | [ DENY deny_point ]
    | [ DENY BETWEEN deny_point AND deny_point]

描述

CREATE USER是CREATE ROLE的别名。

CREATE ROLE和CREATE USER之间的唯一区别是CREATE USER默认情况下假定LOGIN， 而CREATE ROLE默认情况下假定NOLOGIN。

兼容性说明

SQL标准中没有CREATE USER语句。

相关SQL命令

CREATE ROLE