migration

相关标签：javascript jquery android 多少钱 iPhone

How do I reuse a previous migration's up or down methods

I had created my own User class and authentication from scratch but have recently decided to scrap it and start over using the Devise gem.[详细]

2023-03-22 14:19 分类：问答
Automatic Lightwieight Migration for core data Problem

I\'m having problem use Automatic Lightweight Migration Code in my App delegate ! I read all the apple\'s documentations about \"Automatic Lightweight Migration\" but after all I can\'t find my way t[详细]

2023-03-22 08:26 分类：问答
How to implement an algorithm with pointers and memory allocation in Java

I have an algorithm in C++ and I need to implement something similar in Java. I\'m having trouble with memory alloca开发者_JAVA百科tion. How can I migrate the following snippet for example, from C++ t[详细]

2023-03-22 03:27 分类：问答
switch from sybase to oracle - considerations?

I am in charge of a large J2EE application that utilizes Hibernate extensively at the DAO layer. I\'ve recently been tasked to consider the repercussions and feasibility of switching from Sybase ASE 1[详细]

2023-03-21 05:37 分类：问答
Migrate Log4J log.debug statements to SLF4J's parameterized messages?

I have around 400 of production Java source code files with around hundred to twenty thousand lines of codes each to change out from Log4J String concatenation to SLF4J\'s parameterized logging.[详细]

2023-03-20 23:18 分类：问答
How to find out what database (e.g. wether using mysql/pgsql/?) in a django south migration?

I\'m writing a migration using Django\'s South, and it can only work on MySQL databases. Is there anyway I can find out what database is being used (i.e. is this running on mysql or is it on postgres,[详细]

2023-03-20 21:20 分类：问答
Cassandra schema updates [closed]

Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers.[详细]

2023-03-20 14:52 分类：问答
Migrating a proprietary CMS database to a Joomla database

I\'m currently trying to write a script to migrate the database from a proprietary CMS system to a Joomla 1.6 database.[详细]

2023-03-20 13:46 分类：问答
In a migration, how do you change the column type to text without specifying the :limit?

I want to change a column type from :string to :text The problem is that if I simply do: change_column :questions, :content, :text[详细]

2023-03-20 12:01 分类：问答
Core data to existing project issue

I am migrating a core data using sqlite as the persistentStoreCoordinator, the Core Data Model, entities, I created everything, but now my problem is I don\'t know how to make Core Data to write initi[详细]

2023-03-20 10:59 分类：问答