我有这样的现有表格结构:
AnimalTable
-------------
|Id |
|Color |
|Weight |
|AnimalType |
-------------
CatTable
----------------
|Id |
|MeowSound |
|AnimalTableId |
----------------
DogTable
----------------
|Id |
|BarkSound |
|AnimalTableId |
----------------
Dog。
从零敲碎打中确定这一点似乎非常简单,但我不敢肯定,改变我现有表格中的主要要点的最佳途径是,像我一直在使用所有电子工具一样。 是否有任何人这样做,并且能够提供一些建议/指示? 提前感谢。
我最后撰写了一份储存程序,基本上删除了<代码>Id栏,放在<代码>CatTable和<编码>上,改名为<代码>AnimalTableId,并使之成为主要内容。 很方便,但难部分是撰写一些内容,笼统地确定在<代码>上已经指出的所有外国钥匙。 缩略语 Id 。
升级文字。
你们今后会因计划的其他变化而面临同样的决定。 在您的发展中,你可以重新确定这些班级,让EF为你们创建数据库。 当你去生产时,你还需要生产提升产量的文字。
改变主要关键用途:
EXEC sp_rename CatTable.Id , AnimalTableId , COLUMN ;
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