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 entities were loaded. Refresh ObjectStateManager entries. 存储区更新.插入或删除语句影响到了意外的行数({0}).实体在加载后可能被修改或删除.刷新 Objec…

页面控件没有做限制.提交后还可以继续点击,造成了在短时间内的多次请求.查看日志两次错误在200ms之内. 错误信息 system.Data.Entity.Infrastructure.DbUpdateConcurrencyException: Store update, insert, or delete statement affected an unexpected number of rows (). Entities may have been modified or deleted s…

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 since entities were loaded. 1:确认model中是否外键关联问题 解决方案:外键关联不要修改外键表的数据,可以暂是设置NotMapped或者外键model=null处理 2:…

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 were loaded 原因:Check your object, does it pass Primary Key Null. This Exception is Generally due thi…

1.The use of function merge(update.insert.delete) Example: #1.Initialize the data create table #test(id int ,value int); create table #test2(id int ,value int); insert into #test values(0,0) insert into #test values(1,1) insert into #test values(2,2)…

SQL server触发器中 update insert delete 分别给写个例子以及解释下例子的作用和意思被, 万分感谢!!!! 主要想知道下各个语句的书写规范. INSERT: 表1 (ID,NAME) 表2 (ID,NAME) 当用户插入表1数据后,表2也被插入相同的数据 CREATE TRIGGER TRI1 ON 表1 FOR INSERT AS BEGIN  INSERT INTO 表2 SELECT * FROM INSERTED END GO DELETE: 表1 (ID,N…

/// <summary> /// 执行update, insert,delete 语句, 不返回结果集,(类型化参数) /// </summary> /// <param name="connString">连接字符串</param> /// <param name="sql">待执行的sql语句</param> /// <param name="errMsg">…

Ø  简介 本文介绍 Oracle 中的增删改语句,即 INSERT.DELETE.UPDATE 语句的使用.是时候展现真正的技术了,快上车: 1.   插入数据(INSERT) 2.   修改数据(UPDATE) 3.   删除数据(DELETE) 4.   回滚(rollback)的使用 5.   注意事项 1.   插入数据(INSERT) u  语法: INSERT INTO TABLE_NAME [(column1[, column2, -]] VALUES(value1[, valu…

https://github.com/mybatis/mybatis-dynamic-sql MyBatis Dynamic SQL     What Is This? This library is a framework for generating dynamic SQL statements. Think of it as a typesafe SQL templating library, with additional support for MyBatis3 and Spring…

案例环境: 数据库版本: Microsoft SQL Server 2005 (Microsoft SQL Server 2005 - 9.00.5000.00 (X64) ) 案例介绍: 对一个数据库实例做清理工作时,发现有一个很久之前禁用的数据库维护作业,于是遂删除该作业,但是删除该作业时,遇到如下错误: 脚本删除操作: USE [msdb] GO EXEC msdb.dbo.sp_delete_job @job_id=N'876ab683-6d81-47c4-bba2-0dfa581561…