CREATE  PROC [dbo].[sp_help_table]
    @tableName NVARCHAR(50)--表名称
AS
BEGIN
    SELECT a.colorder 字段序号,a.name 字段名,b.name 字段类型,b.length AS 字段长度,g.[value] AS 字段说明
    FROM syscolumns a left join systypes b
    on a.xtype=b.xusertype
    inner join sysobjects d
    on a.id=d.id and d.xtype='U' and d.name<>'dtproperties'
    left join sys.extended_properties g
    on a.id=g.major_id AND a.colid = g.minor_id
    WHERE d.[name] =@tableName 
    order by a.id,a.colorder
END