-- 查询所有用户 SELECT USERNAME FROM ALL_USERS; -- 查询所有表空间 SELECT TABLESPACE_NAME FROM USER_TABLESPACES; -- 创建用户 和 密码 CREATE USER [用户名] IDENTIFIED BY [密码] ; -- 删除用户 DROP USER [用户名] CASCADE; -- 创建表空间 CREATE TABLESPACE [表空间名] DATAFILE ['x:\xxx\xxx\xxx.DBF'] SIZE 100M AUTOEXTEND ON NEXT 32M MAXSIZE 2048M; -- 删除表空间 DROP TABLESPACE [表空间名] INCLUDING CONTENTS AND DATAFILES CASCADE CONSTRAINTS; -- 给用户授权 GRANT DBA TO [用户名]; -- 将空间分配给用户 ALTER USER [用户名] DEFAULT TABLESPACE [表空间名] ;