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SQL

Querying relational data with SQL, from ad-hoc analysis to schema and query design.

1 app, 8 skills and 15 MCP servers tagged SQL.

Apps

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Pipeline, encrypted Iceberg lake and query engine in one, with an MCP server that lets Claude and Codex query your data directly.

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Skills

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Run SQL — or a plain-English question — against DuckDB databases, CSV, Parquet, JSON and Excel files, with schema inspection and error recovery built in.

26 views

Tinybird's own datafile and SQL rules for coding agents — datasources, pipes, endpoints, materialized views, deduplication and query optimisation.

3 views

Skill: EF Core Query Optimization

by .NET Team at Microsoft

New

Make slow Entity Framework Core queries fast — read the generated SQL first, fix N+1s, cartesian Include explosions and non-sargable predicates, then re-measure one change at a time.

4 views

Supabase's official Postgres skill — eight rule categories ranked by impact, each with wrong-vs-right SQL and EXPLAIN output, for schema, RLS, indexing and query work on Postgres anywhere.

4 views

Google's official Spanner skill: provision instances, design primary keys that do not hotspot, write SQL and client-library code, and diagnose slow queries — with DDL and DML gated behind your approval.

6 views

Google's official BigQuery skill — datasets, tables, jobs and SQL from the bq CLI, plus the reference set for IAM, Terraform, change history and continuous queries.

2 views

ClickHouse's official agent skill: 31 rules for primary keys, data types, JOINs, batching and partitioning that an agent must check and cite before advising on a schema or query.

4 views

MCP servers

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InfluxData's official MCP server for InfluxDB 3 — schema discovery, bounded SQL and InfluxQL queries, line-protocol writes and token administration across Core, Enterprise and Cloud.

MCP: DBHub

by Bytebase

Featured

A universal database MCP server — one integration for PostgreSQL, MySQL, SQL Server, SQLite, and MariaDB.

MCP: PlanetScale

by PlanetScale

PlanetScale's official hosted MCP server — browse organizations, databases and branches, read schema, run guarded SQL, and pull Insights and schema recommendations.

MCP: Apache Doris MCP Server

by The Apache Software Foundation

Apache's official read-only MCP server for Doris — eight tool domains and 55 progressively disclosed children covering catalog, query, cluster, lineage and lakehouse.

Databricks-hosted MCP endpoints that expose Unity Catalog functions, Genie spaces, Vector Search indexes and Databricks SQL to agents, with UC permissions enforced.

MCP: SQLite

by Model Context Protocol

Query, modify, and analyse a local SQLite database file directly from an AI client.

MCP: PostgreSQL

by Model Context Protocol

Read-only PostgreSQL access with automatic schema inspection — the reference MCP server for Postgres.

MCP: Snowflake

by Snowflake Labs

Snowflake Labs' MCP server — query the warehouse, use Cortex search and analyst, and manage objects.

MCP: ClickHouse

by ClickHouse

ClickHouse's official MCP server — run analytical SQL, explore schemas, and query local files with chDB.

MCP: Supabase

by Supabase

Manage your Supabase project from an agent — run SQL, inspect tables, manage branches, and generate types.

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