SELECT (case when a.colorder=1 then d.name else null 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 [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=\'要查询的表\' --如果只查询指定表,加上此条件
order by a.id,a.colorder
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