Question

I am working on the project like wordpress. Where clients will be notified when updates are available. I am done with providing UI updates but how to provide database updates. What steps should i follow?

Database updates may include

• Creation of new tables or
• Deletion / Updation of new tables.

Then how can I update client database without affecting his/her existing data?

Please help.

Answer 1

You are looking for database migration. The general idea is that you should provide a script to downgrade and upgrade your database between different versions.

• http://davedevelopment.co.uk/2008/04/14/how-to-simple-database-migrations-with-phing-and-dbdeploy.html
• http://drarok.com/ladder/