DM 常用命令总结
创建表空间
Create tablespace TEST datafile ‘/home/dmdba/dmdbms/DAMENG/TEST’;
创建用户
Create user test identified by test default tablespace test;
查看用户信息
SELECT username，use_id,default_tablespace, profile from dba_users;
查看角色类型
SELECT * from dba_roles;
查看用户角色和权限
SELECT * from SYS.DBA_ROLE_PRIVS;
检查表空间大小
SELECT
a.tablespace_name "表空间名称",
total / (1024 * 1024) "表空间大小(M)",
FREE / (1024 * 1024) "表空间剩余大小(M)",
(total - FREE) / (1024 * 1024) "表空间使用大小(M)",
total / (1024 * 1024 * 1024) "表空间大小(G)",
FREE / (1024 * 1024 * 1024) "表空间剩余大小(G)",
(total - FREE) / (1024 * 1024 * 1024) "表空间使用大小(G)",
ROUND((total - FREE) / total, 4) * 100 "使用率 %"
FROM
(
SELECT
tablespace_name,
SUM(bytes) FREE
FROM
dba_free_space
GROUP BY
tablespace_name
) a, -- 表空间剩余
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