|
以下两个视图均基于系统表sysobjects、syscomments和系统视图sysconstraints，查询结果中包括表ID、表名、列ID、列名、CHECK约束ID、CHECK约束名、CHECK约束status值以及CHECK约束的内容，TCCView为Table-Column-Check View，结果中均为列级CHECK约束，TCView为Table-Check View，结果中均为表级CHECK约束。
关于字段status的值的作用，参见不用企业管理器的情况下得知CHECK约束的属性设置一文。
下面是两个视图的代码，可用于SQL SERVER 2000数据库中的任意数据库中。
TCCView：
SELECT TOP 100 PERCENT a.id AS tableid, a.tablename, a.colid, a.columnname,
a.datatype, a.length, b.constid AS checkid, b.checkname, b.status, b.content
FROM (SELECT sysobjects.name AS tablename, sysobjects.id,
syscolumns.name AS columnname, syscolumns.colid,
systypes.name AS datatype, syscolumns.length AS length
FROM sysobjects, syscolumns, systypes
WHERE sysobjects.xtype = ''''u'''' AND sysobjects.id = syscolumns.id AND
syscolumns.xtype = systypes.xtype AND
systypes.xtype = systypes.xusertype AND sysobjects.status > 0)
a LEFT OUTER JOIN
(SELECT sysobjects.name checkname, sysobjects.status, sysconstraints.constid,
sysconstraints.id, sysconstraints.colid, syscomments.text AS content
FROM sysobjects, sysconstraints, syscomments
WHERE xtype = ''''c'''' AND sysobjects.id = sysconstraints.constid AND
sysconstraints.constid = syscomments.id) b ON a.id = b.id AND
a.colid = b.colid
ORDER BY a.tablename, a.columnname, b.checkname
TCView：
SELECT a.id AS tableid, a.tablename, b.constid AS checkid, b.checkname, b.status,
b.content
FROM (SELECT sysobjects.id, sysobjects.name AS tablename
FROM sysobjects
WHERE sysobjects.xtype = ''''u'''' AND sysobjects.status > 0) a LEFT OUTER JOIN
(SELECT sysobjects.name checkname, sysobjects.status, sysconstraints.constid,
sysconstraints.id, sysconstraints.colid, syscomments.text AS content
FROM sysobjects, sysconstraints, syscomments
WHERE xtype = ''''c'''' AND sysobjects.id = sysconstraints.constid AND
sysconstraints.constid = syscomments.id AND sysconstraints.colid = 0) b ON
a.id = b.id
[Access]sql随机抽取记录 [Access]ASP&SQL让select查询结果随机排序的实现方法
[聊天工具]企业邮件系统的利器----FoxMail Server [系统软件]OPEN SERVER 5.0.5安装EXP300阵列柜
[系统软件]SQL语句性能优化--LECCO SQL Expert [系统软件]关于Windows2000Server的灾难恢复
[常用软件][网络]下载服务革命性风暴Poco Server评测 [C语言系列]动态创建SQL Server数据库、表、存储过程等架构信…
[C语言系列]SQL Server到DB2连接服务器的实现 [C语言系列]SQL Server到SYBASE连接服务器的实现
|
注：本站部分文章源于互联网，版权归原作者所有！如有侵权，请原作者与本站联系，本站将立即删除！ 本站文章除特别注明外均可转载，但需注明出处！ [MinTao学以致用网] 
