Uploaded byAxel Fontaine
Flyway: The agile database migration framework for Java
The agile database migration framework for Java allows developers and DBAs to cooperatively manage database changes. Flyway provides commands to migrate databases between versions, allowing development and production databases to be aligned. It integrates with Java applications so database migrations run automatically on startup, keeping code and database structure in sync across environments.
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Flyway: The agile database migration framework for Java
- 1. The agile databasemigration framework for Java @axelfontaine Axel Fontaine axelfontaine.com Software Development Expert business@axelfontaine.com
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- 9. ? ? DB
- 10. DEV PROD ? http://digitalcitizen.ca/2009/06/22/simpsons-profile-pics-for-facebook-and-other-applications/
- 11. VS DML DDL
- 12. Problems for theDBA • Little understanding of context • Coordination with app deployer • Monkey work • Poor use of expertise • Poor working hours
- 13. Problems for DEV • Late review of changes • Manual step with friction • Less likely to change DB structure • Code and DB diverge • Incompatible with Continuous Deployment
- 14. Goals Goals • Cooperation between DEV and DBA • Use full power of the DB • (Almost) no lock-in • Integrate in app so you can forget about it • Descent working hours for everyone
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- 16. 6 commands clean info migrate validate init repair
- 19. Empty DB Version 1 Version 2
- 20. Flyway flyway =new Flyway(); flyway.setDataSource(myDataSource); flyway.migrate();
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- 22. DEV Migrate PROD on Startup
- 23. Existing Production Database align DEV TEST PROD V1__Dump.sql
- 24. Existing Production Database align DEV TEST PROD V1__Dump.sql
- 25. Existing Production Database align DEV TEST PROD migrate V1__Dump.sql
- 26. Existing Production Database align DEV TEST PROD migrate V1__Dump.sql
- 27. Java Migrations public classV1_2__Another_user implements JdbcMigration { public void migrate(Connection conn) throws Exception { PreparedStatement stmt = conn.prepareStatement(“…"); try { stmt.execute(); } finally { stmt.close(); } } }
- 28. Multiple Locations http://www.flickr.com/photos/nrivera/3158808122/
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- 31. DB Backup
- 32. DB Backup
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- 36. Example Rename column Surname-> Last_Name
- 37. Surname Last_Name Surname ALTER TABLE … RENAME COLUMN
- 38. Last_Name Last_Name Surname Last_Name ALTER TABLE … DROP TRIGGER … ADD COLUMN Last_Name ALTER TABLE … UPDATE … SET Last_Name = Surname DROP COLUMN Surname CREATE TRIGGER …
- 39. Last_Name Last_Name DROP TRIGGER … ALTER TABLE … DROP COLUMN Surname
- 41. Roadmap 2.1 2.2 3.0
- 42. 1 day course Effective Database Migrations with Flyway flywaydb.org/support/training.html
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- 44. @axelfontaine Axel Fontaine axelfontaine.com Software Development Expert business@axelfontaine.com
Editor's Notes
- #16 Plain Old SQLConvention Over ConfigurationFail fastZero-required dependenciesJava 5+ and JDBC driverDeceivingly simple, yet surprisingly powerful