I will write, clean up, or troubleshoot a sql query

Are you stuck on a SQL query or need help cleaning one up?

I can help you write, review, troubleshoot, or improve a SQL query in SQL Server or PostgreSQL. I have experience working with database-driven applications, backend systems, reporting queries, joins, filters, grouping, stored procedures, and troubleshooting SQL issues.

This gig is best for small, focused SQL tasks such as:

• Writing a new SQL query
• Fixing a query that is not working correctly
• Reviewing a query for logic or readability
• Helping with JOINs, WHERE clauses, GROUP BY, ORDER BY, and filtering
• Troubleshooting basic query errors
• Explaining what a query is doing in plain language
• Reviewing or updating a small stored procedure

Please send the query, table structure if available, sample data if you can provide it, the error message if there is one, and a brief explanation of what you want the query to do.

This service is for one clearly defined SQL request. Larger database projects, multiple queries, or advanced performance tuning may require a custom offer.