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工作表之间的关联关系
如何关联本表的记录
如何关联本表的记录
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1、本课程介绍了关联本表的用法,也就是一条记录关联本表的另外一条记录。
2、同一种业务对象,有时也会有关联,例如员工之间的上司和下属关系。
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如何建立两表之间的关联
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