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Data modeller
AI tools to consider for a data modeller include SQLAI.ai, DocQuery, SheetDB and TblFlow. They support tasks common in this work: write & review SQL, tune database performance and design schemas & data models.
Also known as: data modeler schema designer
Write & review SQL
Draft, explain, and check SQL queries against a real schema.
| Tool | What it does | Pricing | Type | Evidence |
|---|---|---|---|---|
| DocQueryNot verified | Read-only MCP over your Excel or Airtable plus the PDFs beside it, joined as one relational dataset. | Pricing not verified | Tool + MCP | Site checked |
| SheetDBNot verified | Read and write Google Sheets rows via SheetDB APIs; per-API agent permissions, approved deletes. | Pricing not verified | Tool + MCP | Site checked |
| TblFlowNot verified | Lisez et modifiez vos bases TblFlow (PostgreSQL), recherchez vos documents, lancez vos agents. | Pricing not verified | Tool + MCP | Site checked |
| OrionBINot verified | Query your own databases and Data Sets with read-only SQL, and build hosted dashboards. | Pricing not verified | Tool + MCP | Site checked |
| AI2SQLAI2SQL | Generates SQL from natural language for common databases. | Paid | Tool + MCP | Site checked |
| MetabaseMetabase | Open-source business intelligence with natural-language questions. | Open source | Tool | Site checked |
| ThoughtSpotThoughtSpot | AI analytics agent that answers questions from warehouse data. | Paid | Tool | Site checked |
| VannaVanna AI | Open-source framework for building data agents that turn questions into SQL, with user-scoped access. | Open source | Tool + MCP | Site checked |
Tune database performance
Find slow queries, read execution plans, and test index changes.
| Tool | What it does | Pricing | Type | Evidence |
|---|---|---|---|---|
| DBtuneDBtune | AI that tunes PostgreSQL automatically for performance and stability. | Pricing not verified | Tool | Site checked |
| Percona Monitoring and ManagementPercona | Open-source monitoring for MySQL, PostgreSQL and MongoDB. | Open source | Tool | Site checked |
| pganalyzepganalyze | PostgreSQL performance monitoring with query and index advice. | Paid | Tool | Site checked |
| SQLAI.aiSQLAI.ai | AI assistant that generates, explains and optimises SQL. | Paid | Tool | Site checked |
| Datadog Database MonitoringDatadog | Query-level monitoring and explain plans across database hosts. | Pricing not verified | Tool | Site checked |
Design schemas & data models
Model tables and relationships, and review schema changes.
| Tool | What it does | Pricing | Type | Evidence |
|---|---|---|---|---|
| ChartDBChartDB | Open-source database diagram editor that visualises schemas and exports DDL. | Open source | Tool | Site checked |
| dbdiagramHolistics | Draws entity relationship diagrams from a simple text language. | Free + paid | Tool | Site checked |
| HackoladeHackolade | Data modelling for NoSQL, SQL and API schemas. | Paid | Tool | Site checked |
| ErdDocsNot verified | ER diagrams from SQL, Prisma or ORM models. One tool, no account, nothing stored. | Pricing not verified | MCP | Site checked |
| toro4nNot verified | Draw, shape, and edit Neo4j graph data models in toro4n with your AI assistant. | Pricing not verified | Tool + MCP | Site checked |
| AtlasAriga | Manages database schemas as code with planned and linted migrations. | Free + paid | Tool | Site checked |
| BytebaseBytebase | Database change management with review workflows and SQL checks. | Free + paid | Tool | Site checked |
| Informatica CLAIREInformatica | AI assistance across enterprise data integration, quality and governance. | Contact sales | Tool | Site checked |
Fields this role works in
Common questions
What AI tools can a data modeller use?
SQLAI.ai, DocQuery, SheetDB, TblFlow and OrionBI are good places to start. Tasks they support in this work include: write & review SQL, tune database performance and design schemas & data models.
How should AI output be checked in this role?
Treat it as a draft. Confirm facts, figures, and citations against the original source, and keep accountable decisions with a qualified person. Check the vendor’s data terms before sharing anything confidential.
No paid ranking. Reviewed 2026-11-04. Tool fit is an editorial suggestion based on published capabilities. See sources & methodology →