How do you handle error handling in stored procedures?

Short answer: Error handling is an essential part of stored procedures.

Explain a bit more

Here’s how you handle errors in different databases: SQL Server: Use TRY...CATCH blocks to handle errors. BEGIN TRY - Some SQL operation INSERT INTO employees (name) VALUES ('John Doe'); END TRY BEGIN CATCH SELECT ERROR_MESSAGE() AS ErrorMessage; END CATCH; PostgreSQL: Use EXCEPTION blocks in PL/pgSQL. BEGIN - Some SQL operation INSERT INTO employees (name) VALUES ('John Doe'); EXCEPTION WHEN others THEN RAISE NOTICE 'Error occurred: %', SQLERRM; END; MySQL: MySQL doesn't have a built-in TRY...CATCH, but you can use DECLARE...HANDLER. DELIMITER // CREATE PROCEDURE ExampleProcedure() BEGIN DECLARE CONTINUE HANDLER FOR SQLEXCEPTION SELECT 'An error occurred'; - Some SQL operation INSERT INTO employees (name) VALUES ('John Doe'); END // DELIMITER ;

Real-world example (ShopNest)

ShopNest’s SQL Server database stores customers, products, and orders. Good indexes and clear foreign keys keep checkout queries fast and safe.

Say this in the interview

1. Define — one clear sentence (the short answer above).
2. Example — relate it to a project like ShopNest or your real work.
3. Trade-off — when you would not use it.