SQL 复习笔记3数据控制语句（授权、授权、拒绝访问）

GRANT <系统特权租> TO <用户组> | PUBLIC [ WITH GRANT OPTION];

GRANT UPDATE(sid),SELECT ON student TO USER1;

REVOKE <权限组> | ALL PRIVILIGES [ ON <对象名>]
FROM <用户名组> | PUBLIC;

REVOKE UPDATE (sid) ON student FROM USER1;

DENY ALL [PRIVILIGES] | <权限组>[ ON <对象名>] TO <用户组> | PUBLIC;