如何更改外鍵名稱？

Question

我目前在我的SQL Server數據庫中創建新表。我正在重命名舊錶，所以還有外鍵約束。

要使用Adventureworks DB作爲示例，SalesOrderDetail表的FK_SalesOrderDetail_SalesOrderHeader_SalesOrderId（鏈接到SalesOrderHeader表）。

正在改變這個外鍵的名稱是否足夠，或者我是否還需要更改SalesOrderHeader表中的外鍵引用？

Answer 1

只是名稱 - 它不會以任何方式改變關係。

EXEC sp_rename 'Sales.FK_SalesOrderDetail_SalesOrderHeader_SalesOrderId', 
       'new_name', 
       'OBJECT'; 

注：在國外AdventureWorks的關鍵是在Sales架構，以便在object_name說法是架構在上述過程調用合格。

Answer 2

SELECT Object_name(constraint_object_id), 
     Object_name(parent_object_id), 
     (SELECT name 
     FROM sys.columns 
     WHERE object_id = parent_object_id 
       AND column_id = parent_column_id), 
     Object_name(referenced_object_id), 
     (SELECT name 
     FROM sys.columns 
     WHERE object_id = referenced_object_id 
       AND column_id = referenced_column_id), 
     'sp_rename ''' + Object_name(constraint_object_id) + ''', ''con_fk_' + (SELECT Lower(name) 
                       FROM sys.columns 
                       WHERE object_id = parent_object_id 
                         AND column_id = parent_column_id) + ''',''OBJECT''' 
FROM sys.foreign_key_columns