ms sql - 在数据库中查找关系表

发布于 2024-11-16 14:06:49 字数 95 浏览 3 评论 0 原文

有没有办法通过 SQL Express 2005 中的查询或 GUI 查找数据库中表之间的关系？

除了手动在表中查找匹配的主/外键之外，还有其他更简单的方法吗？

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又爬满兰若 2024-11-23 14:06:49

我相信您正在寻找的脚本来自以下链接：

这是脚本：

SELECT
K_Table = FK.TABLE_NAME,
FK_Column = CU.COLUMN_NAME,
PK_Table = PK.TABLE_NAME,
PK_Column = PT.COLUMN_NAME,
Constraint_Name = C.CONSTRAINT_NAME
FROM INFORMATION_SCHEMA.REFERENTIAL_CONSTRAINTS C
INNER JOIN INFORMATION_SCHEMA.TABLE_CONSTRAINTS FK ON C.CONSTRAINT_NAME = FK.CONSTRAINT_NAME
INNER JOIN INFORMATION_SCHEMA.TABLE_CONSTRAINTS PK ON C.UNIQUE_CONSTRAINT_NAME = PK.CONSTRAINT_NAME
INNER JOIN INFORMATION_SCHEMA.KEY_COLUMN_USAGE CU ON C.CONSTRAINT_NAME = CU.CONSTRAINT_NAME
INNER JOIN (
SELECT i1.TABLE_NAME, i2.COLUMN_NAME
FROM INFORMATION_SCHEMA.TABLE_CONSTRAINTS i1
INNER JOIN INFORMATION_SCHEMA.KEY_COLUMN_USAGE i2 ON i1.CONSTRAINT_NAME = i2.CONSTRAINT_NAME
WHERE i1.CONSTRAINT_TYPE = 'PRIMARY KEY'
) PT ON PT.TABLE_NAME = PK.TABLE_NAME
---- optional:
--ORDER BY 1,2,3,4
--WHERE PK.TABLE_NAME='something'WHERE FK.TABLE_NAME='something'
--WHERE PK.TABLE_NAME IN ('one_thing', 'another')
--WHERE FK.TABLE_NAME IN ('one_thing', 'another')

请注意，您可以在底部添加一些可选语句来限制或排序结果。输出将列出包含外键的表、字段名称、主键表及其引用的字段以及已给出的约束名称。

I believe the script you are looking for comes from the following link:

http://blog.sqlauthority.com/2006/11/01/sql-server-query-to-display-foreign-key-relationships-and-name-of-the-constraint-for-each-table-in-database/

Here is the script:

SELECT
K_Table = FK.TABLE_NAME,
FK_Column = CU.COLUMN_NAME,
PK_Table = PK.TABLE_NAME,
PK_Column = PT.COLUMN_NAME,
Constraint_Name = C.CONSTRAINT_NAME
FROM INFORMATION_SCHEMA.REFERENTIAL_CONSTRAINTS C
INNER JOIN INFORMATION_SCHEMA.TABLE_CONSTRAINTS FK ON C.CONSTRAINT_NAME = FK.CONSTRAINT_NAME
INNER JOIN INFORMATION_SCHEMA.TABLE_CONSTRAINTS PK ON C.UNIQUE_CONSTRAINT_NAME = PK.CONSTRAINT_NAME
INNER JOIN INFORMATION_SCHEMA.KEY_COLUMN_USAGE CU ON C.CONSTRAINT_NAME = CU.CONSTRAINT_NAME
INNER JOIN (
SELECT i1.TABLE_NAME, i2.COLUMN_NAME
FROM INFORMATION_SCHEMA.TABLE_CONSTRAINTS i1
INNER JOIN INFORMATION_SCHEMA.KEY_COLUMN_USAGE i2 ON i1.CONSTRAINT_NAME = i2.CONSTRAINT_NAME
WHERE i1.CONSTRAINT_TYPE = 'PRIMARY KEY'
) PT ON PT.TABLE_NAME = PK.TABLE_NAME
---- optional:
--ORDER BY 1,2,3,4
--WHERE PK.TABLE_NAME='something'WHERE FK.TABLE_NAME='something'
--WHERE PK.TABLE_NAME IN ('one_thing', 'another')
--WHERE FK.TABLE_NAME IN ('one_thing', 'another')

Notice that you can add some optional statements at the bottom to limit or order your results. The output will list the table that contains the foreign key, the name of the field, the primary key table and field that it refers to and the name the constraint has been given.

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