SQLServer导出数据表结构

SELECT

 

      (case when a.colorder=1 then d.name else '' end)表名,

 

      a.colorder 字段序号,

 

      a.name 字段名,

 

      (case when COLUMNPROPERTY( a.id,a.name,'IsIdentity')=1 then '√'else '' end) 标识,

 

      (case when (SELECT count(*)

 

      FROM sysobjects

 

      WHERE (name in

 

                (SELECT name

 

               FROM sysindexes

 

               WHERE (id = a.id) AND (indid in

 

                         (SELECT indid

 

                        FROM sysindexkeys

 

                        WHERE (id = a.id) AND (colid in

 

                                  (SELECT colid

 

                                 FROM syscolumns

 

                                 WHERE (id = a.id) AND (name = a.name))))))) AND

 

             (xtype = 'PK'))>0 then '√' else '' end) 主键,

 

      b.name 类型,

 

      a.length 占用字节数,

 

      COLUMNPROPERTY(a.id,a.name,'PRECISION') as 长度,

 

      isnull(COLUMNPROPERTY(a.id,a.name,'Scale'),0) as 小数位数,

 

      (case when a.isnullable=1 then '√'else '' end) 允许空,

 

      isnull(e.text,'') 默认值,

 

      isnull(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 syscomments e

 

on a.cdefault=e.id

 

left join sys.extended_properties g

 

on a.id=g.major_id AND a.colid = g.minor_id 

 

order by a.id,a.colorder