Re: Request for Implementation of Custom Error Messages for CHECK Constraints

ALTER TABLE table_name

ADD CONSTRAINT constraint_name

CHECK (condition)

MESSAGE 'Custom error message when the condition is not met.';

 

    Improved User Experience: Applications could capture and display more contextual and helpful error messages to end-users, improving usability and reducing confusion.

    Enhanced Debugging: Developers could immediately identify the specific business rule that has been violated, speeding up the debugging and resolution of data integrity issues.

    Implicit Documentation: The custom message would serve as a way to document the intent of the constraint directly within the database schema, facilitating understanding and maintenance of the data model.

    Consistency: It would allow for a more consistent approach to providing informative feedback on business rule violations, complementing the existing capability in triggers.