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What are triggers in SQL?

Q: What are triggers in SQL?

Short answer: A trigger is a special kind of stored procedure that is automatically executed or fired when certain events occur in a database, such as INSERT, UPDATE, or DELETE. Example: A trigger that automatically updates a timestamp field every time a row is modified. 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 Define — one clear sentence (the short answer above). Example — relate it to a project like ShopNest or your real work. Trade-off — when you would not use it.

Short answer: A trigger is a special kind of stored procedure that is automatically executed or fired when certain events occur in a database, such as INSERT, UPDATE, or DELETE. Example: A trigger that automatically updates a timestamp field every time a row is modified.

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

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

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