What are the advantages and disadvantages of moving part of the business logic to the database (triggers, procedures)?

Moving part of the business logic to the database through triggers and stored procedures has its pros and cons.

Pros:

• Performance: Logic executed on the database side can run faster due to reduced network traffic and query optimization.
• Data integrity: Triggers and procedures ensure compliance with business rules directly when data is modified.
• Logic centralization: Logic is concentrated in one place, making it easier to support when working with different clients.

Cons:

• Support complexity: Logic in the database is more difficult to test and debug, especially with large amounts of code.
• Dependence on DBMS: Procedures and triggers are often tied to a specific SQL dialect, reducing portability.
• Limited capabilities: Procedural languages in the database are less flexible and powerful compared to general-purpose languages.
• Versioning difficulties: Managing code versions in the database is more complex than in version control systems.

Ultimately, moving business logic to the database is justified if data integrity and performance are important, but it requires a careful approach and good documentation.