mssql一句话查询数据库表和字段结构

SELECT
表名=case when a.colorder=1 then d.name else '' end,
--字段序号=a.colorder,
字段名=a.name,
标识=case when COLUMNPROPERTY(a.id,a.name,'IsIdentity')=1 then '√'else '' end,
主键=case when exists
(
SELECT 1 FROM sysobjects where xtype='PK' and name in
(
SELECT name FROM sysindexes WHERE indid in
(
SELECT indid FROM sysindexkeys WHERE id = a.id AND colid=a.colid
)
)
)
then '√' else '' end,
类型=b.name,
--占用字节数=a.length,
--长度=COLUMNPROPERTY(a.id,a.name,'PRECISION'),
小数位数=isnull(COLUMNPROPERTY(a.id,a.name,'Scale'),0),
允许空=case when a.isnullable=1 then '√' else '' end,
默认值=isnull(e.text,''),
字段说明=isnull(g.[value],'')
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