🎁 New User? Get 20% off your first purchase with code NEWUSER20 · ⚡ Instant download · 🔒 Secure checkout Register Now →
Menu

Categories

Databases Intermediate

What is Normalization?

The process of organizing database tables to reduce data redundancy and improve data integrity.

Normalization structures a database into normal forms (1NF through 5NF, typically up to 3NF). First Normal Form eliminates repeating groups. Second Normal Form removes partial dependencies. Third Normal Form removes transitive dependencies.

Benefits include reduced data duplication, consistent updates, and smaller tables. Trade-offs include more JOINs and potentially slower reads. Denormalization intentionally adds redundancy for read performance.

Related Terms

Prepared Statement
A pre-compiled SQL template that uses parameters instead of literal values, preventing SQL injection and improving performance.
View
A virtual table defined by a SQL query that provides a simplified or restricted view of data from one or more tables.
Cursor
A database object that enables row-by-row processing of query results, useful for operations that cannot be done in bulk.
Database Connection Pooling
A technique that maintains a cache of database connections for reuse, reducing the overhead of creating new connections.
Database Proxy
A middleware server that sits between applications and databases, providing connection pooling, load balancing, and query routing.
PostgreSQL
An advanced open-source relational database known for its reliability, feature richness, and standards compliance.
 View All Databases Terms →