Skip to main content
FIELD REPORT · DATABASE

Database Selection Guide: SQL vs NoSQL Decision Framework

Choose the right database for your application. PostgreSQL, MongoDB, DynamoDB, and more compared.

PUBLISHED
September 18, 2025
READ TIME
1 MIN
AUTHOR
ONE FREQUENCY

Database selection impacts performance, scalability, and development complexity.

SQL Databases

PostgreSQL: Best overall RDBMS MySQL: Web applications SQL Server: Microsoft ecosystem Oracle: Enterprise legacy

NoSQL Options

MongoDB: Document store DynamoDB: Serverless Cassandra: Time series Redis: Caching Neo4j: Graph data

Decision Framework

  • Data structure requirements
  • Consistency needs
  • Scale requirements
  • Query complexity
  • Team expertise

Hybrid Approach

Many applications benefit from polyglot persistence - using multiple databases for different needs.

View All Insights
NEXT STEP

Ready to ship the next outcome?

One Frequency Consulting brings 25+ years of technology leadership and military discipline to every engagement. First call is operator-grade scoping — sixty minutes, no charge.