查询表结构sql

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,

字段说明 = isnull(G.[value],''),

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,'')

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='OrderInfo' --如果只查询指定表,加上此条件

Order By

A.id,A.colorder