TL;DR what\'s the best way to migrate lots of data between one very poorly structured database (with much repetition of columns, no interrelations, and duplicate data), to another highly organised and
I\'ve created a migration to reformat a few things in the database (adding a friendly link in format \'my-name-city-state\' to my Stores records), but rake db:migrate fails and says
I am trying to run heroku rake db:migrate to run my migrations on heroku and the first two migrations ran great but the third which looks like this
Currently running some webapps on Jboss AS 4/5 and I am testing migration to jboss7. When I try to deploy a jersey based webapp on JBoss AS 7 (full profile with standalone-preview config file), I get:
I have a small Sybase ASE 15 database on a box that is scheduled to be de-commissioned. What is the best way to \"clone\" or \"transfer\" my database to the new box?
We are planning to convert an application from Sybase SQL Anywhere to SQL Server. At SA we use a lot of \"on existing update\", that checks by primary key, if l开发者_JS百科ine exists.
I have to create or update a schema from some models that I have changed in rails. T开发者_开发知识库he original schema file it\'s wrong because of some changes I have done in the models.
Consider this code: i开发者_运维问答mport scala.xml.{Node,HasKeyValue} def domatch(x:Node): Node = {
What would be potential strategies to getting the old data into a new db structure? 开发者_运维百科One strategy we are thinking of is to write some ruby which executes some sql on a per table basis.Si
I\'开发者_如何学JAVAve moved my workspace and successfully managed to get it to work on Linux (Ubuntu 11.04) my problem lays on the fact that I can\'t remember how I did this when I did it for my mac.
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