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n8n-data-tables

Official

Design and use Data Tables safely in n8n.

Software Engineering#schema design#n8n#deduplication#idempotency#persistent state#data tables#MCP data tools
Authorn8n-io
Version1.0.0
Installs0

System Documentation

What problem does it solve?

It prevents fragile, schema-buggy usage of n8n Data Tables by guiding correct column design, idempotent CRUD operations, and reliable patterns for deduplication, lookups, and durable state.

Core Features & Use Cases

  • Schema-safe Data Table design: system-managed columns, camelCase naming, and correct handling of nested data via string columns with an _object postfix.
  • Correct CRUD operation choices: insert, upsert, update, get, deleteRows, and rowExists/rowNotExists for the right behavior.
  • Idempotency and dedup patterns: decide between Remove Duplicates, rowNotExists + Insert, or Get + IF with alwaysOutputData to return cached rows safely.
  • Operational guardrails: avoid common pitfalls like declaring system columns, leaking storage-format strings, or assuming foreign-key behavior.

Quick Start

Use the n8n-data-tables skill to help you design a Data Table schema with idempotent insert behavior for events, including nested fields stored as _object columns and safe Get + IF branching.

Dependency Matrix

Required Modules

None required

Components

references

💻 Claude Code Installation

Recommended: Let Claude install automatically. Simply copy and paste the text below to Claude Code.

Please help me install this Skill:
Name: n8n-data-tables
Download link: https://github.com/n8n-io/skills/archive/main.zip#n8n-data-tables

Please download this .zip file, extract it, and install it in the .claude/skills/ directory.
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