Flyway - database migrations made easy
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5 minute ignite about Flyway: Database migrations made easy. Version control for your database so you can migrate it with ease and confidence.
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Flyway - database migrations made easy
- 3. Development: The code side
- 4. Development: The database side (1/2)
- 5. Development: The database side (2/2) DEV PRODHmm, what to release this week? New tables, some data, a view or two,…
- 6. Let’s compare Version well defined Say what? Version controlled sources On a good day locally Well defined release I’ll have a look The code The database
- 7. Let’s focus on the database for once Version well defined Say what? Version controlled sources On a good day locally Well defined release I’ll have a look The code The database
- 8. Ever considered database migrations? Recreate from scratch Clear state Easy version upgrades + + =
- 9. How does it work Step 1: version control Creates a table SCHEMA_VERSION schema_version
- 10. How does it work Step 1: version control Creates a table SCHEMA_VERSION Step 2: scanning Scan filesystem/classpath for new migrations schema_version version 1
- 11. How does it work Step 1: version control Creates a table SCHEMA_VERSION Step 2: scanning Scan filesystem/classpath for new migrations Step 3: sorting Sort the new migrations on version number schema_version version 2
- 12. Inside the schema_version table
- 13. Ready to migrate Step 1: version control Creates a table SCHEMA_VERSION Step 2: scanning Scan filesystem/classpath for new migrations Step 3: sorting Sort the new migrations on version number schema_version version 2.8.1 pending
- 15. How do migrations look like? (1/3) Plain SQL Versioned Repeatable Java V2.1__create_bar_invite.sql CREATE TABLE bar_invite ( id uuid NOT NULL, email text NOT NULL, registration uuid, created_on timestamp with time zone NOT NULL, bar_id uuid, user_id uuid, bartender boolean );
- 16. How do migrations look like? (2/3) Plain SQL Versioned Repeatable Java R__create_bar_invite_view.sql CREATE OR REPLACE VIEW bar_invite_emails AS select email from bar_invites;
- 17. How do migrations look like? (3/3) Plain SQL Versioned Repeatable Java V1_2__Another_user
- 18. Where to store the migrations?
- 19. Yeah nice, but how to run the migrations? Maven API Command line GradleAnt Scala Build Tool
- 20. Let’s migrate using Maven (1/2) Step 1: add dependency Obtains the Flyway library Step 2: configure Configure database, user, password,… Step 3: run mvn flyway:migrate
- 21. Let’s migrate using Maven (2/2)
- 22. Any other commands? Migrate Clean Info RepairValidate Baseline