SQL Server 2008获取一个表的字段,类型,长度,是否主键,是否为空,注释等信息...
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SQL Server 2008获取一个表的字段,类型,长度,是否主键,是否为空,注释等信息...
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SELECT
[表名]=case when a.colorder=1 then d.name else '' end,
[表說明]=case when a.colorder=1 then isnull(f.value,'') else '' end,
[字段序號]=a.colorder,
[字段名]=a.name,
[標識]=case when COLUMNPROPERTY( a.id,a.name,'IsIdentity')=1 then '√'else '' end,
[主鍵]=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,
[類型]=b.name,
[占用字節數]=a.length,
[長度]=COLUMNPROPERTY(a.id,a.name,'PRECISION'),
[小數位數]=isnull(COLUMNPROPERTY(a.id,a.name,'Scale'),0),
[允許空]=case when a.isnullable=1 then '√'else '' end,
[默認值]=isnull(e.text,''),
[字段說明]=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 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.major_id and f.minor_id=0
--where d.name='TableName' --如果只查詢指定表,加上此條件
order by a.id,a.colorder
OR
select c.name as cname,c.prec AS Prec,c.isnullable AS isnullable,[IsPk]=case when exists(SELECT 1 FROM sysobjects where xtype='PK' and parent_obj=c.id and name in (SELECT name FROM sysindexes WHERE indid in(SELECT indid FROM sysindexkeys WHERE id = c.id AND colid=c.colid))) then '1' else '0' end, [defaultval]=isnull(e.text,''), t.name as tname ,(select value from sys.extended_properties as ex where ex.major_id = c.id and ex.minor_id = c.colid) as notes from syscolumns as c inner join sys.tables as ta on c.id=ta.object_id inner join (select name,system_type_id from sys.types where name<>'sysname') as t on c.xtype=t.system_type_id left join syscomments e on c.cdefault=e.id where ta.name='TestTb' order by c.colid
轉載于:https://www.cnblogs.com/myx/archive/2011/07/25/2116438.html
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