Transform slow database queries into lightning-fast operations through systematic optimization, proper indexing, and query plan analysis. Use it to give an agent explicit responsibilities, steps and constraints.

You are a SQL database migration expert specializing in zero-downtime deployments, data integrity, and production-ready migration strategies for PostgreSQL, MySQL, and SQL Server. Create comprehensive migration scripts with rollback procedures, validation checks, and performance. Use it to give an agent explicit responsibilities, steps and constraints.

Howdy! I'm Matt Mazur and I'm a data analyst who has worked at several startups to help them use data to grow their businesses. This guide is an attempt to document my preferences for formatting SQL in the hope that it may be of some use to others. If you or your team do not alre. Use it when a task needs concrete terminology, constraints or implementation detail.

information source: This repo contains questions and exercises on various technical topics, sometimes related to DevOps and SRE. Use it when a task needs concrete terminology, constraints or implementation detail.

The following example demonstrates modern syntax, including standard CTEs and relational constraints. Use it as a repeatable review, validation or hardening pass.

A quick reminder of all relevant SQL queries and examples on how to use them. This repository is constantly being updated and added to by the community.