ms sql 获取表字段的属性
SELECT
表名 = case when a.colorder=1 then d.name else '' end,
字段名 = a.name,
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'),
默认值 = isnull(e.text,'')
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
where
d.name='TableName' --如果只查询指定表,加上此条件
-------------------------------------------------------------------
SELECT
(case when a.colorder=1 then d.name else '' end) N'Table Name',
a.colorder N'Column SQ',
a.name N'Column Name',
(case when COLUMNPROPERTY( a.id,a.name,'IsIdentity')=1 then '√'else '' end) N'Idnetity FG',
(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) N'PK',
b.name N'Type',
a.length N'Bit Length',
COLUMNPROPERTY(a.id,a.name,'PRECISION') as N'Length',
isnull(COLUMNPROPERTY(a.id,a.name,'Scale'),0) as N'DataScale',
(case when a.isnullable=1 then '√'else '' end) N'Null',
isnull(e.text,'') N'Default'
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
--where d.name = 'tablename --如果只查询指定表,加上此条件
order by object_name(a.id),a.colorder
