Contents
How can I update my database schema without downtime?
Updating a database schema is pretty easy if you can take your application offline. You shutdown the application, create a backup of the current database schema, perform all required update operations using tools like Flyway or Liquibase, restart the application and hope that everything works fine.
How to enable migration to schema 7 in Hangfire?
DisableGlobalLocks = true, // Migration to Schema 7 is required EnableHeavyMigrations = false // Default value: false }); After setting new configuration options, deploy the changes to your servers when needed. Please use Hangfire Forum for long questions or questions with source code.
Is there a tool to migrate configuration data?
The Configuration Migration tool uses schema to export and import configuration data. The tool does not migrate tables or table schema. Migration may fail with missing elements such as tables and fields when configuration data has mismatch with selected schema.
Is it possible to apply migrations at runtime?
Apply migrations at runtime It’s possible for the application itself to apply migrations programmatically, typically during startup. While productive for local development and testing of migrations, this approach is inappropriate for managing production databases, for the following reasons:
How to update database schema with NOT NULL constraint?
Run a database script to fill that field in all existing records. Add the not null constraint. The good news is that you can execute all 3 statements within the same migration step. Removing a database column that is neither accessed by the old nor the new version of your application is also a backward-compatible operation.
What’s the easiest way to update a database?
There are 2 general ways to achieve that. The migration process is a little bit easier if your database supports triggers. So let’s start with this one: Add a column with the new name and the same data type as the old one. You then copy all data from the old column to the new one.