Prompt

What should I use when I need both SQL queries and flexible JSON fields?

Technology / Databases1 observationLast seen Oct 7, 2026

Latest observation

Oct 7, 2026OpenAI APIWeb search: off

Use a relational database with JSON support—most commonly PostgreSQL with JSONB.

Why this is usually the best fit:

  • You get full SQL querying for structured data
  • You can store flexible, schema-less JSON fields for variable attributes
  • You can index and query inside JSONB efficiently
  • It avoids splitting your data across two systems unless you really need to

Good rule of thumb:

  • Put core, frequently queried fields in normal SQL columns
  • Put optional or rapidly changing fields in a JSONB column

If you want, I can also compare this with:

  • MongoDB
  • MySQL JSON
  • a hybrid SQL + document approach

Observation history

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