migration

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add-migration push visual studion in 'Microsoft visual studio is busy'

I tried to use ado.net migrations and when type add-migration in nu-get console i sometimes(in 50% of cases) cause visual studio in stuck and get the mesageMicrosoft visual studio is busy.[详细]

2023-04-11 23:35 分类：问答
Transfer database from 2008 R2 back to 2005

My company has to go back to Sql Server 2005 from 2008R2 (legacy issues with scripts and customer deployment.. ) and I got the task to find out how to do that: is there any automated migration tools ([详细]

2023-04-11 23:26 分类：问答
Migrating my MVC 3 application to MVC 4

I really do not know what to do, I\'m following this article that shows how to migrate my MVC 3 application manually .[详细]

2023-04-11 15:02 分类：问答
Ruby on Rails: How can I revert a migration with rake db:migrate?

After installing devise MODEL User i got this. class DeviseCreateUsers < ActiveRecord::Migration def self.up[详细]

2023-04-11 08:36 分类：问答
Migration a has_and_belongs_to_many join table don't create the table

I\'m develop a web app with Rails 3.0.9 and Postgres 9.4 I\'m trying to create a join table for a has_and_belongs_to_many association, but when execute \"rake db:migrate\" the only one not executed mi[详细]

2023-04-11 03:36 分类：问答
How to migrate schema from SQL Server 2008 to SQL Server CE 4?

Yes, the title is correct the app now needs a local database which is going to be ssce4.0 开发者_运维技巧and hence...[详细]

2023-04-10 15:48 分类：问答
difference between self.up and up in rails migration

I have noticed that some tutorials use self.up and self.down for migration methods. I understand that the self keyword indicates the method belo开发者_StackOverflowngs to the instance only, but do the[详细]

2023-04-09 22:59 分类：问答
deleted migration file keeps coming back Rails 3

I h开发者_开发技巧ave 2 versions of the same migration (bad habit, I know). I deleted old version many times, but after restarting my project (or do something with it, like rake db:test:prepare), the[详细]

2023-04-09 16:26 分类：问答
Managing conflict in schema.rb created by Git operation

I created a migration, ran rake db:migrate, which bumped my db/schema.rb version number. Then I did a git fetch origin master and saw that there were changes from my team members. So I did a git stash[详细]

2023-04-09 09:45 分类：问答
Rails 3 generate migration - no up or down method

Just learning rails, am on to migrations and it all started off pretty logically until I hit something odd going on in the code;[详细]

2023-04-09 03:32 分类：问答