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Databases Intermediate

What is Stored Procedure?

A precompiled collection of SQL statements stored in the database that can be executed as a single unit.

Stored procedures encapsulate complex database logic on the server side. They accept parameters, perform operations, and return results. Benefits include reduced network traffic, code reuse, and centralized business logic.

In PostgreSQL, functions (CREATE FUNCTION) serve a similar purpose, supporting PL/pgSQL, PL/Python, and other languages. Modern development often favors application-level logic, but stored procedures remain valuable for complex data operations.

Related Terms

Data Warehouse
A centralized repository optimized for analytical queries that integrates data from multiple operational sources.
Replication
The process of copying and maintaining database data across multiple servers for redundancy, failover, and read scaling.
Database Index Types
Different index structures (B-tree, Hash, GIN, GiST, BRIN) optimized for various query patterns and data types.
Window Function
An SQL function that performs calculations across a set of rows related to the current row without collapsing the result set.
Migration
A version-controlled change to a database schema that can be applied and reversed systematically.
Transaction
A sequence of database operations that are treated as a single unit — either all succeed or all are rolled back.
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