最近在学习Visual Studio连接mysql EF模型.在nuget中安装mysql.data时总是提示The package 'MySql.Data' tried to add a framework reference to 'System.Runtime' which was not found in the GAC.当前mysql.data的版本是6.10.5,看描述是支持.net framework 4.5.2的.经过研究发现,把项目的.net framework 改为4.5可以…

allow zero datetime=true导致datetime转换失败:MySql.Data.Types.MySqlDateTime”的对象无法转换为类型“System.Nullable`1[System.DateTime] 做反射转换时遇到该问题 mysql连接字符串去掉allow zero datetime=true,否则返回的日期会是MySql.Data.Types.MySqlDateTime类型,而不是DataTime…

MySQL to Oracle with OGG 1. Install MySQL: yum install mysql-community-server [root@localhost ~]#  yum install mysql-community-server Loaded plugins: refresh-packagekit, security, ulninfo Setting up Install Process mysql-connectors-community         …

mysql ado.net connector下载地址: http://dev.mysql.com/downloads/connector/net/ 选择版本: Generally Available Releases(1)是发布版(bug什么的较少的版本吧),而Development Releases(2)是开发版 我们采用1版本 Windows (x86, 32-bit), MSI Installer 该版本是window下的安装版,如果你安装了这个版本的话,在本机调试的时候可以不用再次注册…

insert INTO stu(name) VALUES('maimai'); set @ReturnValue=@@IDENTITY; string sql="insert INTO stu(name) VALUES(@name);set @ReturnValue=@@IDENTITY; MySqlParameter[] parameters = { new MySqlParameter("@name", MySqlDbType.VarChar,100),MySqlDbTy…

MySqlHelper.cs代码如下: using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Text; using System.Data; using System.Collections; using MySql.Data.MySqlClient; using MySql.Data.Types; using System.Configuration;…

我使用的这个Mysql.data.dll文件 web.config上面主要需要声明以下代码 <system.data> <DbProviderFactories> <add name="MySQL Data Provider" invariant="MySql.Data.MySqlClient1" description=".Net Framework Data Provider for MySQL" type=&q…

转载:https://rmohan.com/?p=4605 Change the default MySQL data directory with SELinux enabled This is a short article that explains how you change the default MySQL data directory and adjust SELinux to account for the changes. The article assumes that y…

近来做的一个项目中,数据库用的是 MySql, 而在项目使用 Entity Data Model 来做数据服务层,可是在项目中添加 Data Entty Model 时,一般我们都会选择从数据库中直接生成,可是在选择Data Provider 时,就是没有 .net framework  Data provider for Mysql, 里面默认就只有一个 .net framework Data provider for SQL Server , 这个只能与 Microsoft 的 SQL se…

16 How To Move a MySQL Data Directory to a New Location on Ubuntu 16.04 PostedJuly 21, 2016 62.1kviews MYSQL BLOCK STORAGE STORAGE UBUNTU UBUNTU 16.04 Introduction Databases grow over time, sometimes outgrowing the space on the file system. You can a…