zoukankan      html  css  js  c++  java
  • sqlserver导出字段说明

    原文出处:http://bbs.csdn.net/topics/300011503

    --use datebase --数据库
    --go
    --2005实现数据库表字段属性统计(2000里的系统表sysproperties描述表不存在,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 x join sys.indexes y on x.Type=N'PK' and x.Name=y.Name
    join sysindexkeys z on z.ID=a.Object_id and z.indid=y.index_id and z.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]=case when ColumnProperty(a.object_id,a.Name,'Precision')=-1 then '2^31-1'
    else rtrim(ColumnProperty(a.object_id,a.Name,'Precision')) end,
    [小数]=isnull(ColumnProperty(a.object_id,a.Name,'Scale'),0),
    [是否为空]=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
    order by 1

  • 相关阅读:
    IOS-在ARC项目中使用非ARC框架或者类库
    IOS-Social.framework
    IOS- 单例
    IOS-二维码的实现
    IOS-JSON & XML解析
    SCOI2011 地板 (BZOJ2331)
    Formula 1(URAL1519)
    Tour in the Castle(ZOJ3256 矩阵加速插头dp)
    Tony's tour(poj1739,男人题之一,插头dp)
    POJ3133(插头dp)
  • 原文地址:https://www.cnblogs.com/liushangxin/p/3620711.html
Copyright © 2011-2022 走看看