如何找出一堆表中它们的关系来

[fanjj_023]

求救！请问大虾们在sql server2005中如何有效快速地在一堆的表中找出它们之间的关联关系，讲讲方法，谢谢！

[dawugui]

1.使用powerdesign 12.5
2.使用Powerbuilder
3.使用SQL语句.如下:

1. SqlServer数据库字典--表结构.sql

SELECT TOP 100 PERCENT --a.id, 

CASE WHEN a.colorder = 1 THEN d.name ELSE '' END AS 表名, 

CASE WHEN a.colorder = 1 THEN isnull(f.value, '') ELSE '' END AS 表说明, 

a.colorder AS 字段序号, a.name AS 字段名, CASE WHEN COLUMNPROPERTY(a.id, 

a.name, 'IsIdentity') = 1 THEN '√' ELSE '' END AS 标识, 

CASE WHEN EXISTS 

(SELECT 1 

FROM dbo.sysindexes si INNER JOIN 

dbo.sysindexkeys sik ON si.id = sik.id AND si.indid = sik.indid INNER JOIN 

dbo.syscolumns sc ON sc.id = sik.id AND sc.colid = sik.colid INNER JOIN 

dbo.sysobjects so ON so.name = so.name AND so.xtype = 'PK' 

WHERE sc.id = a.id AND sc.colid = a.colid) THEN '√' ELSE '' END AS 主键, 

b.name AS 类型, a.length AS 长度, COLUMNPROPERTY(a.id, a.name, 'PRECISION') 

AS 精度, ISNULL(COLUMNPROPERTY(a.id, a.name, 'Scale'), 0) AS 小数位数, 

CASE WHEN a.isnullable = 1 THEN '√' ELSE '' END AS 允许空, ISNULL(e.text, '') 

AS 默认值, ISNULL(g.[value], '') AS 字段说明, d.crdate AS 创建时间, 

CASE WHEN a.colorder = 1 THEN d.refdate ELSE NULL END AS 更改时间 

FROM dbo.syscolumns a LEFT OUTER JOIN 

dbo.systypes b ON a.xtype = b.xusertype INNER JOIN 

dbo.sysobjects d ON a.id = d.id AND d.xtype = 'U' AND 

d.status >= 0 LEFT OUTER JOIN 

dbo.syscomments e ON a.cdefault = e.id LEFT OUTER JOIN 

dbo.sysproperties g ON a.id = g.id AND a.colid = g.smallid LEFT OUTER JOIN 

dbo.sysproperties f ON d.id = f.id AND f.smallid = 0 

ORDER BY d.name, a.colorder


----------------------------------------------------------------
2.SqlServer数据库字典--索引.sql

SELECT TOP 100 PERCENT --a.id, 

CASE WHEN b.keyno = 1 THEN c.name ELSE '' END AS 表名, 

CASE WHEN b.keyno = 1 THEN a.name ELSE '' END AS 索引名称, d.name AS 列名, 

b.keyno AS 索引顺序, CASE indexkey_property(c.id, b.indid, b.keyno, 'isdescending') 

WHEN 1 THEN '降序' WHEN 0 THEN '升序' END AS 排序, CASE WHEN p.id IS NULL 

THEN '' ELSE '√' END AS 主键, CASE INDEXPROPERTY(c.id, a.name, 'IsClustered') 

WHEN 1 THEN '√' WHEN 0 THEN '' END AS 聚集, CASE INDEXPROPERTY(c.id, 

a.name, 'IsUnique') WHEN 1 THEN '√' WHEN 0 THEN '' END AS 唯一, 

CASE WHEN e.id IS NULL THEN '' ELSE '√' END AS 唯一约束, 

a.OrigFillFactor AS 填充因子, c.crdate AS 创建时间, c.refdate AS 更改时间 

FROM dbo.sysindexes a INNER JOIN 

dbo.sysindexkeys b ON a.id = b.id AND a.indid = b.indid INNER JOIN 

dbo.syscolumns d ON b.id = d.id AND b.colid = d.colid INNER JOIN 

dbo.sysobjects c ON a.id = c.id AND c.xtype = 'U' LEFT OUTER JOIN 

dbo.sysobjects e ON e.name = a.name AND e.xtype = 'UQ' LEFT OUTER JOIN 

dbo.sysobjects p ON p.name = a.name AND p.xtype = 'PK' 

WHERE (OBJECTPROPERTY(a.id, N'IsUserTable') = 1) AND (OBJECTPROPERTY(a.id, 

N'IsMSShipped') = 0) AND (INDEXPROPERTY(a.id, a.name, 'IsAutoStatistics') = 0) 

ORDER BY c.name, a.name, b.keyno


-------------------------------------------------

3.SqlServer数据库字典--主键.外键.约束.视图.函数.存储过程.触发器.sql

SELECT DISTINCT 

TOP 100 PERCENT o.xtype, 

CASE o.xtype WHEN 'X' THEN '扩展存储过程' WHEN 'TR' THEN '触发器' WHEN 'PK' THEN 

'主键' WHEN 'F' THEN '外键' WHEN 'C' THEN '约束' WHEN 'V' THEN '视图' WHEN 'FN' 

THEN '函数-标量' WHEN 'IF' THEN '函数-内嵌' WHEN 'TF' THEN '函数-表值' ELSE '存储过程' 

END AS 类型, o.name AS 对象名, o.crdate AS 创建时间, o.refdate AS 更改时间, 

c.text AS 声明语句 

FROM dbo.sysobjects o LEFT OUTER JOIN 

dbo.syscomments c ON o.id = c.id 

WHERE (o.xtype IN ('X', 'TR', 'C', 'V', 'F', 'IF', 'TF', 'FN', 'P', 'PK')) AND 

(OBJECTPROPERTY(o.id, N'IsMSShipped') = 0) 

ORDER BY CASE o.xtype WHEN 'X' THEN '扩展存储过程' WHEN 'TR' THEN '触发器' WHEN 

'PK' THEN '主键' WHEN 'F' THEN '外键' WHEN 'C' THEN '约束' WHEN 'V' THEN '视图' 

WHEN 'FN' THEN '函数-标量' WHEN 'IF' THEN '函数-内嵌' WHEN 'TF' THEN '函数-表值' 

ELSE '存储过程' END DESC

[中国风]

在SQL2005以上版本，可在企業管理數據庫—關系圖—新建—添加所有表
會生成ER圖

[bhtfg538]

新建 表关系图

[bhtfg538]

新建 数据库关系图，慢慢添加就好了