ALTER DATABASE语句是一个PostgreSQL扩展。
ALTER DATABASE <dbname> SET configuration_parameter { TO | = } { value | DEFAULT } ALTER DATABASE <dbname> SET configuration_parameter FROM CURRENT ALTER DATABASE <dbname> RESET configuration_parameter ALTER DATABASE <dbname> RESET ALL 参数说明如下表所示。 参数 描述 configuration_parameter Hologre...
ALTER DATABASE name [ [ WITH ] option [ ... ] ] 这里option 可以是以下参数: CONNECTION LIMIT connlimit ALTER DATABASE name RENAME TO new_name ALTER DATABASE name OWNER TO new_owner ALTER DATABASE name SET TABLESPACE new_tablespace ALTER DATABASE name SET configuration_parameter { TO | =...
ALTER DATABASE name [ [ WITH ] option [ ... ] ] 这里option 可以是: ALLOW_CONNECTIONS allowconn CONNECTION LIMIT connlimit IS_TEMPLATE istemplate ALTER DATABASE name RENAME TO new_name ALTER DATABASE name OWNER TO { new_owner | CURRENT_USER | SESSION_USER } ALTER DATABASE name SET TABL...
ALTER DATABASE testdb2 RENAME TO testhrdb; Third, execute the following statement to change the owner of the testhrdbdatabase from postgresto hr, with the assumption that the hr role already exists. ALTER DATABASE testhrdb OWNER TO hr; If the hr role does not exist, you can create it ...
Whenever a new session is subsequently started in that database, the specified value becomes the session default value. The database-specific default overrides whatever setting is present in postgresql.conf or has been received from the postgres command line. Only the database owner or a super...
ALTERDATABASEpostgresSET"plv8.start_proc"TO"v8.plv8_init"; 说明 默认我们需要在建立连接的时候配置,一般如下: SETplv8.start_proc='v8.plv8_init'; 通过ALTER DATABASE postgres SET 我们就为每个session 配置了自动的变量,不需要代码调整了。
if (!stmt->role): 如果没有指定角色,表示这是 ALTER DATABASE 操作。 pg_database_ownercheck(...): 检查当前用户是否为数据库的所有者。 aclcheck_error(...): 如果不是所有者,返回权限检查错误。if (!stmt->role && !stmt->database) { /* Must be superuser to alter settings globally. */ ...
This attribute is used to be compatible with open-source Postgres communication. An open-source Postgres client interface (Postgres 9.2.19 is recommended) can use a database user having this attribute to connect to the database. PGUSERof a user cannot be modified in the current version. ...
ALTERROLErole_name[INDATABASEdatabase_name]RESET{configuration_parameter|ALL}; 参数说明 role_name 现有角色名。 取值范围:已存在的用户名。 new_name 角色的新名称。 取值范围:字符串,要符合标识符的命名规范。且最多为63个字符。 CREATEDB | NOCREATEDB ...