Comparisons

Vector vs Graph vs Relational Databases

Venn Diagrams · made in Skemio

A 3-set Venn diagram comparing Relational, Graph, and Vector databases with overlaps illustrating knowledge graphs and hybrid search.
A 3-set Venn diagram comparing Relational, Graph, and Vector databases with overlaps illustrating knowledge graphs and hybrid search.
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What it shows

  • RDBMS enforces ACID guarantees and relational constraints across tables.
  • Graph DBs traverse multi-hop connections with index-free adjacency in O(1).
  • Vector DBs query high-dimensional embeddings using nearest-neighbor search.

The takeaway

Pick RDBMS for ledger integrity, Graph for interconnected entities, and Vector for semantic search.

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