下列語句的執(zhí)行效果是() revoke create on schema public from public;
A.回收public用戶在public模式下的create權(quán)限 B.回收所有用戶在public模式下的create權(quán)限 C.該語句執(zhí)行失敗 D.該語句可以執(zhí)行成功但沒有任何效果
A.$user",public B.postgres",public C.test",public D.schema",public
A.alter database db_name rename to newname; B.alter database db_name owner to newname; C.alter database db_name set tablespace new_tbspace; D.alter database db_name reset all;