Flyway
The easiest scenario is when you point the Flyway to an empty database. It will attempt to locate your schema history table. Because the database is empty, Flyway won't find it and will instead create it.
The easiest scenario is when you point the Flyway to an empty database. It will attempt to locate your schema history table. Because the database is empty, Flyway won't find it and will instead create it.
The easiest scenario is when you point the Flyway to an empty database.
It will attempt to locate your schema history table. Because the database is empty, Flyway won't find it and will instead create it.
Immediately after that, Flyway will begin scanning the application's file system or classpath for migrations. They can be written in Sql or Java.
With the metadata and initial state in place, we can now talk about migrating to newer versions.
Flyway will once again scan the application's file system or classpath for migrations. Migrations are checked in the schema history table. If their version number is less than or equal to that of the version marked as current, they are ignored.
Every time the need arises to evolve the database, be it structure (DDL) or reference data (DML), simply create a new migration with a version number higher than the current one. The next time Flyway starts, it will find it and update the database accordingly.
System Requirements:
CPU: 1.8 GHz dual core processor
RAM: 2 GB
HDD/SSD: 50 GB of free space on main drive
Operating system: Microsoft Windows 8 32-bit, Microsoft Windows 7 32-bit, and Microsoft Windows Vista 32-bit
Resolution: 1024×768
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