1.查询数据库的内存
SQL_GET_MEMORY ='SELECT name, value, value_in_use, [description] FROM sys.configurations WHERE name = "max server memory
(MB)" ORDER BY name OPTION (RECOMPILE)'

2.查询用户权限，SERVER级别
SQL_GET_USER_RIGHT_SERVER = "SELECT * FROM sys.fn_my_permissions(NULL, 'SERVER')"

3.查询用户权限，DATABASE级别
SQL_GET_USER_RIGHT_DB = "SELECT * FROM sys.fn_my_permissions(NULL, 'DATABASE')"

4.切换数据库主备关系
SQL_CHANGE_MASTER = "alter database elbert08 set partner failover"