Neo4j 5.x CSV Import with Constraints: Setup, Verification, and Recovery
Load CSV data into Neo4j 5.x safely: create constraints and indexes, run a verified import, and recover from partial loads without risking production data.
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Neo4j Node Uniqueness Constraints Not Using an Index: Diagnostic Guide
When a MATCH on a constrained property still scans nodes, the constraint may exist but the planner isn't using its automatic unique index. This guide shows how to verify constraint and index state, interpret PROFILE, and fix common schema and cluster causes.
neo4jStop Joining Tables: Leveraging Index-Free Adjacency in Neo4j
Learn how Neo4j's Index-Free Adjacency eliminates the 'join penalty' of relational databases by using direct pointers for constant-time traversals.
Neo4j Composite Indexes: Fixing Multi-Property Filters Without Intersection Overhead
Composite property indexes can collapse multi-attribute graph queries into a single index seek, but only when property order matches your query patterns. Here is how to decide when they help and what they cost.
Optimizing Text Search in Neo4j: Choosing the Right Full-Text Index Strategy
Stop using slow CONTAINS queries in Neo4j. Learn how to implement full-text indexes, choose the right analyzer for your language, and validate search relevance using Lucene scoring.
Batch importing large datasets in Neo4j: when to use explicit transactions
Learn how to speed up Neo4j bulk imports by batching Cypher statements in explicit transactions, with a worked example and trade‑offs.
Neo4j Pagination: SKIP/LIMIT vs Keyset (Seek) Paging for Large Result Sets
SKIP/LIMIT forces Neo4j to scan and discard every preceding row on deep pages. Keyset pagination with an indexed anchor and a compound cursor keeps page cost constant — here's how to choose, implement, and validate it.
Stop Sending Single Writes: Batching Neo4j Ingests with UNWIND
Stop slowing down your Neo4j ingest with individual MERGE statements. Learn how to use UNWIND and parameterized batches to increase throughput and reduce network overhead.
Neo4j Modeling: When a Relationship Property Should Become a Node
Relationship properties in Neo4j are compact until the fact needs its own relationships. Here's the heuristic for when to reify an edge into a node, with Cypher for both models and the planner implications.