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What tool is specifically recommended to help manage database schema changes when updating your application code?
One such tool, if you are utilizing a migration-based approach and Microsoft SQL Server as your DBMS, is Redgate ReadyRoll. This tool assists in the creation of sequentially named scripts for making changes to the database schema and the data contained in the database tables.
What is a database schema upgrade?
Upgrade Database Schema. The Upgrade Database Schema phase performs all of the changes necessary to make the source database’s schema compatible with the target installation. This entails the modifying the schema of tables, columns, indices, sequences and procedures; it also includes the removal of invalid objects.
How to perform schema update on Microsoft Schema Master?
Disable inbound/outbound replication on the schema master. Then perform the schema update on the schema master. Any badness is contained to the schema master. If something goes bad, blow up the schema master and repair the rest of the forest (seize schema master on another DC and clean out the old schema master).
How to roll back a Microsoft schema update?
Here are some of the “alternatives” I’ve heard people used for potential roll-back strategies: 1. Disable inbound/outbound replication on the schema master. Then perform the schema update on the schema master. Any badness is contained to the schema master.
How do you update your production codebase / database schema?
It consisted of multiple tiers, including a pure communication tier between the off site User Interface Layer and Business Layer. Due to the way the communication layer was coded, any future changes to the Business Layer or DB schema could be implemented without a real outage.
What happens if I Change my db schema?
Due to the way the communication layer was coded, any future changes to the Business Layer or DB schema could be implemented without a real outage. In the worst case scenario, a user would experience a 10-30 second pause as the changes took effect.