Sql Server 查詢數據庫，所有表，列，類型

查詢所有表   select Sysobjects.Name from SysObjects

查詢所有類型   select SysTypes.Name from SysTypes

查詢所有列   select SysColumns.Name from SysColumns

查詢列長度 select SysColumns.length from SysColumns

查詢庫 select * from master.dbo.sysdatabases order by dbid