查找所有相关的表

Question

我有一个大约有1000个表的数据库，我需要找到与特定表相关的所有表，比如说客户表。我如何继续？

Answer 1

当您要求查找与特定表相关的所有表时，我假设您要求所有具有对“客户”表的外键引用的表。这与previous Stack Overflow question密切相关。使用该系统目录视图下面的查询应该做的伎俩：

select t.name as TableWithForeignKey, fk.constraint_column_id as FK_columns , c.name as ForeignKeyColumn 
    from sys.foreign_key_columns as fk 
     inner join sys.tables as t on fk.parent_object_id = t.object_id 
     inner join sys.columns as c on fk.parent_object_id = c.object_id and fk.parent_column_id = c.column_id 
    where fk.referenced_object_id = (select object_id from sys.tables where name = 'customers') 
    order by TableWithForeignKey, ForeignKeyColumn 

MSDN sys.foreign_key_columns