报错环境 目的 更新 model, 但是更新之前 根据外键我查询了 是否已经存在： dbContext.model.Where d gt d.HotelId hotelId .FirstOrDefault 如果 存在 就更新， 不存在就Add 存在 时 去 更新： dbContext.Entry model .State EntityState.Modified dbContext.SaveCh ...
2017-03-08 11:53 0 1352 推荐指数：
EF6进行Insert操作的时候提示错误 Store update, insert, or delete statement affected an unexpected number of rows (0). Entities may have been modified or deleted ...
asp.net 更新数据时报错：Database operation expected to affect 1 row(s) but actually affected 0 row(s). Data may have been modified or deleted since entities ...
asp.net 更新数据时报错：Database operation expected to affect 1 row(s) but actually affected 0 row(s). Data may have been modified or deleted since ...
问题描述 Store update, insert, or delete statement affected an unexpected number of rows ({0}). Entities may have been modified or deleted since ...
1、报错信息 在使用spring data neo4j 查询neo4j中的数据时，我用了自定义的查询语句，即 执行程序后，报错如下： 报错信息看得我很迷，不知所云。。。 2、原因&解决方案 经过一波面向谷歌编程后，=_=！我悟了！ 原来是我自定义 ...
Background: In my scenario. When we do transform record, some time NetSuite throw (USER ERROR) error message about: The record has been deleted ...
查询辅助函数 $this->db->insert_id() 这个ID号是执行数据插入时的ID。 $this->db->affected_rows() Displays the number of affected rows, when doing "write ...
今天在学习android数据库，运行程序的时候报错，错误是：Entities and POJOs must have a usable public constructor. You can have an empty constructor or a constructor whose ...
