SELECT (case when a.colorder=1 then d.name else null end) 表名, ( d.name) 表名2,

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 [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

left join sys.extended_properties f on d.id=f.class and f.minor_id=0

--where b.name is not null

--WHERE d.name='A01' --如果只查询指定表,加上此条件 如果去掉则是查询全部的

--order by a.id,a.colorder

直接在数据集里面写 select * from 表名，在预览不就看到了啊~