RDBMS

Definitions

1. Relational Database Management System — software that stores data in tables of rows and columns, enforces schemas and relational integrity constraints (primary keys, foreign keys, uniqueness), and exposes a SQL interface for querying and manipulating data. PostgreSQL, MySQL, Oracle, and SQL Server are the most widely used RDBMSes.

   In plain English: A database system that organizes data into structured tables with defined relationships between them, queried using SQL.

   Example: "For anything with complex relationships and transactional guarantees, an RDBMS is still the right default choice."

Related Terms

• Query
• Table
• Query Plan
• Index Scan vs Seq Scan
• Upsert
• Left Join
• MySQL
• PostgreSQL
• Primary Key
• Query Builder
• Rails Migration
• Raw SQL
• SQLite
• Complex Type