字段不作为主键,但是有需要唯一值,该如何设置?
字段不作为主键,但是有需要唯一值,该如何设置才能在保存时给出提示,并拒绝存盘。数据表管理,这边有个索引,你可以配置唯一
您可以参考一下这个教程,做一个数据接口:https://bbs.iyunbiao.com/forum.php?mod=viewthread&fid=84&tid=6439
通过这个数据接口的返回值,可以在填表公式做提示框,给出提示,拒绝存盘 不能像数据库一样设置成unique吗?如果有多个字段,那不是很麻烦吗? 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
本帖最后由 向太阳 于 2021-12-23 21:34 编辑
设置完成后,确实可以检查唯一性。但是可以填写保存多条没有内容的记录?
利用【字段名=""】和【字段名=常量.空】均查询不到。这是什么原因?如何才能查到呢? 向太阳 发表于 2021-12-23 21:31
设置完成后,确实可以检查唯一性。但是可以填写保存多条没有内容的记录?
利用【字段名=""】和【字段名=常 ...
不知如何贴图
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