一个删除操作可以从一个父表中删除一条记录，使得相关子表中的记录在父表中没有与之匹配的记录。
A delete operation could remove a record from a parent table, leaving records in an associated child table that no longer have a matching record in the parent table.
一个更新操作可改变父表中的一条记录，使得相关子表中的记录在父表中没有与之匹配的记录。
An update operation could change a record in a parent table, leaving records in an associated child table that no longer have a matching record in the parent table.
你们走在一条可以让你们重新进入光之领域的道路上并会沐浴在成功的喜悦中！
You are on a path that is to allow you to re-enter the realms of the Light and to bask in the joys of triumph!
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