从表里面导出数据XML: -- export declare @xml xml set @xml = (select * from ( select TableName = 'Schema', xmlData = ( select * from [Schema] where id = 337 for xml auto, root('Schemas') ) union select 'SchemaFile', ( select Id, SchemaId, Data = convert(varcha…

how-to-use-rake-tasks-to-generate-migration-sql Rakefile文件里有load_tasks的方法 http://api.rubyonrails.org/ Load Rake, railties tasks and invoke the registered hooks. Check Rails::Railtie.rake_tasks for more info. Source: hide | on GitHub # File railties/l…

7.4 Using mysqldump for Backups 使用mysqldump 用于备份: 7.4.1 Dumping Data in SQL Format with mysqldump 7.4.2 Reloading SQL-Format Backups 7.4.3 Dumping Data in Delimited-Text Format with mysqldump 7.4.4 Reloading Delimited-Text Format Backups 7.4.5 mysqld…

测试版本Ruby:2.3.1   Rails:5.0.1 一.增加栏位       给devise默认的用户新增增加username字段 $ rails generate migration add_username_to_users username:string 2. $ rake db:migrate 这样就成功的给users增加了一个username栏位 二.删除栏位 1. 增加一个栏位: rails g migration RemoveColumnFromTable column:ty…

Saving data to a database is ideal for repeating or structured data, such as contact information. This class assumes that you are familiar with SQL databases in general and helps you get started with SQLite databases on Android. The APIs you'll need…

本篇体验使用SQL Database Migration Wizard(SQLAzureMW)将SQL Server 2008数据库迁移到 Azure SQL Database.当然,SQLAzureMV还可以把SQL Server 2005/2012/2014迁移到Azure SQL Database. SQLAzureMV有几个版本:1.SQLAzureMW v3x 适用于 .NET Framework 3.5 和 SQL Server 2008 R2 SP1 2.SQLAzureMW v4…

I’m going to go over some methods to import data from text files into SQL Server today. The particular file I went out and grabbed is comma delimited and with a few qualifiers in it. It is a typical file you may get and a request made to import or ju…

知识点: 1.使用SQL Helper创建数据库 2.数据的增删查改(PRDU:Put.Read.Delete.Update) 背景知识: 上篇文章学习了保存文件,今天学习的是保存数据到SQL数据库中.相信大家对数据库都不陌生.对于 大量重复的,有特定结构的 数据的保存,用 SQL数据库 来保存是最理想不过了. 下面将用一个关于联系人的数据库Demo来具体学习. 具体知识: 1.定义Contract类 在创建SQL数据库之前,要创建Contract类.那什么是Contract类呢? Contra…

公司的QA检测软件SPC-Light,需要从其中读取一些信息至SQL Server数据库,储存或是做其它分析. 先是在Excel的VBE的工具中,引入一个组件Microsoft ActiveX Data Object 2.8 Library: 下面是读取var至SQL:…

You can link data that doesn't change very often to SQL Source Control. This lets you commit data changes to source control. To source-control data: 1.In the Object Explorer, right-click the database or table with data you want to source control and…