A Stored Procedure is a pre-written SQL query that is saved inside the database and can be executed whenever needed.
As databases grow, tables can quickly become massive—millions or even billions of rows. Queries slow down, maintenance becomes painful, and backups take longer
When a database starts slowing down, the first thing experienced developers ask is not “Do we need more servers?” — it’s “Are the indexes right?”
Queries slow down, maintenance windows stretch, and simple operations like backups or deletes start to hurt.
Database sharding is one of the most powerful techniques for building highly scalable, high-performance systems.