--1：获取当前数据库中的所有用户表
select Name from sysobjects where xtype='u' and status>=0
--2：获取某一个表的所有字段
select * from syscolumns where id=object_id('test1')
--3：查看与某一个表相关的视图、存储过程、函数
select a.* from sysobjects a, syscomments b where a.id = b.id and b.text like '%表名%'
--4：查看当前数据库中所有存储过程
select name as 存储过程名称 from sysobjects where xtype='P'
--5：查询用户创建的所有数据库
select * from master..sysdatabases D where sid not in(select sid from master..syslogins where name='sa') 或者
select dbid, name AS DB_NAME from master..sysdatabases where sid <> 0x01
--6：查询某一个表的字段、数据类型和字段长度
select column_name,data_type ,character_octet_length from information_schema.columns where table_name = 'test1'
select column_name,data_type ,character_octet_length from information_schema.columns where table_name = 'test2'
