SqlServer查询表的字段和注释

SqlServer查询表的字段和注释
SELECT (case when a.colorder=1 then else null end) 表名,
a.colorder 字段序号, 字段名,
(case when COLUMNPROPERTY( a.id,,'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 = )))))))
AND (xtype = 'PK'))>0 then '√' else '' end) 主键, 类型,a.length 占⽤字节数,
COLUMNPROPERTY(a.id,,'PRECISION') as 长度,
isnull(COLUMNPROPERTY(a.id,,'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 <>'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 is not null
--WHERE ='要查询的表' --如果只查询指定表,加上此条件
order by a.id,a.colorder。