Hi, OpenMRS uses a tool called Liquibase (http://www.liquibase.org/) to take care of database changes on application startup. The tool keeps track of all changes to the database and updates the local database when starting up the application. The tools also helps to allow users to create a new database from the browser when starting up the first time.
All in all it provides some great improvements to usability and simplifies implementation. I think of the thousand of installations in India needing database changes as on use case that could benefit from this..... A summary from OpenMRS on what Liquibase added: 1) All database updates are now executed when the API is started. No need to source a .sql file on your database directly. 2) There is a setup wizard in the war file now. The wizard will walk you through creating your database and your runtime properties file. Here's more doc on how OpenMRS uses it: http://n2.nabble.com/Liquibase-Integration-Branch-Merged-to-Trunk-td2102325.html#a2136404 http://openmrs.org/wiki/Data_Model_Update_Conventions http://dev.openmrs.org/browser/openmrs/trunk/metadata/model/liquibase-update-to-latest.xml http://openmrs.org/wiki/Step-by-Step_Installation_for_Developers Ola Hodne Titlestad |Technical Officer| Health Metrics Network (HMN) | World Health Organization Avenue Appia 20 |1211 Geneva 27, Switzerland | Email: titlest...@who.int|Tel: +41 788216897 Website: www.healthmetricsnetwork.org Better Information. Better Decisions. Better Health.
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