获取MSSQL 表结构中字段的备注、主键等信息的sql

2022-05-24 0 761

1、MSSQL2000


复制代码 代码如下:

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:


获取MSSQL 表结构中字段的备注、主键等信息的sql

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