精选优质文档-倾情为你奉上图书馆管理系统建模设计由PDM对象自动生成的数据库脚本文件代码如下：专心-专注-专业if exists (select 1 from dbo.sysreferences r join dbo.sysobjects o on (o.id = r.constid and o.type = F) where r.fkeyid = object_id(books) and o.name = FK_BOOKS_管理书籍_ADMIN)alter table books drop constraint FK_BOOKS_管理书籍_ADMINgoif exists (select 1 from dbo.sysreferences r join dbo.sysobjects o on (o.id = r.constid and o.type = F) where r.fkeyid = object_id(borrow_information) and o.name =
