怎樣獲取乙個表中所有欄位的資訊

2021-08-22 04:22:28 字數 1804 閱讀 9150

先建立乙個檢視

create view fielddesc

asselect o.name as table_name,c.name as field_name,t.name as type,c.length as

length,c.isnullable as isnullable,convert(varchar(30),p.value) as desp

from syscolumns c

join systypes t on c.xtype = t.xusertype

join sysobjects o on o.id=c.id

left join sysproperties p on p.smallid=c.colid and p.id=o.id

where o.xtype='u'

查詢時:

select * from fielddesc where table_name = '你的表名'

還有個更強的語句,是鄒建寫的,也寫出來吧

select

(case when a.colorder=1 then d.name else '' end) n'表名',

a.colorder n'字段序號',

a.name n'欄位名',

(case when columnproperty( a.id,a.name,'isidentity')=1 then '√'else '' end) n'標識',

(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'主鍵',

b.name n'型別',

a.length n'占用位元組數',

columnproperty(a.id,a.name,'precision') as n'長度',

isnull(columnproperty(a.id,a.name,'scale'),0) as n'小數字數',

(case when a.isnullable=1 then '√'else '' end) n'允許空',

isnull(e.text,'') n'預設值',

isnull(g.[value],'') as n'字段說明'

--into ##tx

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 sysproperties g

on a.id=g.id and a.colid = g.smallid

order by object_name(a.id),a.colorder

怎樣獲取乙個表中所有欄位的資訊

先建立乙個檢視 create view fielddesc asselect o.name as table name,c.name as field name,t.name as type,c.length as length,c.isnullable as isnullable,convert ...

怎樣獲取乙個表中所有欄位的資訊

先建立乙個檢視 create view fielddesc asselect o.name as table name,c.name as field name,t.name as type,c.length as length,c.isnullable as isnullable,convert ...

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先建立乙個檢視 create view fielddesc asselect o.name as table name,c.name as field name,t.name as type,c.length as length,c.isnullable as isnullable,convert ...