对于列车上的人来说，我们这些仰躺着望天的孩子只是呼啸而过的风景他们却不知到这些孩子曾偷偷的哭过多少回。
1、MSSQL2000
SELECT
表名 = case when a.colorder=1 then d.name else '' end,
表说明 = case when a.colorder=1 then isnull(f.value,'') 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 parent_obj=a.id 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.xusertype=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
sysproperties g
on
a.id=g.id and a.colid=g.smallid
left join
sysproperties f
on
d.id=f.id and f.smallid=0
where
d.name='FI_dept' --如果只查询指定表,加上此条件
order by a.id,a.colorder
2、MSSQL2005 use test--数据库
go
--2005实现字段属性统计(2000里的系统表sysproperties描述表、字段不存在，2005里用sys.extended_properties视图替代)
select
[表名]=c.Name,
[表说明]=isnull(f.[value],''),
[列名]=a.Name,
[列序号]=a.Column_id,
[标识]=case when is_identity=1 then '√' else '' end,
[主键]=case when exists(select 1 from sys.objects where parent_object_id=a.object_id and type=N'PK' and name in
(select Name from sys.indexes where index_id in
(select indid from sysindexkeys where and colid=a.column_id)))
then '√' else '' end,
[类型]=b.Name,
[字节数]=case when a.[max_length]=-1 and b.Name!='xml' then 'max/2G'
when b.Name='xml' then ' 2^31-1字节/2G'
else rtrim(a.[max_length]) end,
[长度]=ColumnProperty(a.object_id,a.Name,'Precision'),
[小数]=isnull(ColumnProperty(a.object_id,a.Name,'Scale'),0),
[是否為空]=case when a.is_nullable=1 then '√' else '' end,
[列说明]=isnull(e.[value],''),
[默认值]=isnull(d.text,'')
from
sys.columns a
left join
sys.types b on a.user_type_id=b.user_type_id
inner join
sys.objects c on a.object_id=c.object_id and c.Type='U'
left join
syscomments d on a.default_object_id=d.ID
left join
sys.extended_properties e on e.major_id=c.object_id and e.minor_id=a.Column_id and e.class=1
left join
sys.extended_properties f on f.major_id=c.object_id and f.minor_id=0 and f.class=1
[/code]
结果：
本文获取MSSQL表结构中字段的备注、主键等信息的sql到此结束。人生与其说你有不幸的事实存在，倒不如说是你的悲观的观念所带来的。小编再次感谢大家对我们的支持！
