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I will write complex sql queries and regex patterns for your data
About this Gig
Struggling with a complex SQL query or a messy Regex pattern?
I am a Computer Science specialist who helps you write, debug, and optimize SQL queries and Regex patterns with clean, efficient, and production-ready solutions.
I work with real databases and data pipelines, so I focus not only on correctness but also on performance and readability.
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WHAT I CAN DO FOR YOU
- Write complex SQL queries (JOINs, GROUP BY, Subqueries, CTEs)
- Debug SQL errors and fix incorrect results
- Optimize slow queries for better performance
- Create custom Regex patterns for data extraction
- Clean and format messy data using Python (if required)
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DATABASES I WORK WITH
MySQL PostgreSQL MS SQL SQLite Oracle
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WHY CHOOSE ME
- Clean, tested, and optimized queries
- Easy-to-understand logic
- Fast and clear communication
- Real problem-solving, not copied solutions
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NOTE:
Please message me before ordering to briefly discuss your query or Regex requirement.
Database type:
Relational database
Platform:
MS SQL
•
MySQL
•
PostgreSQL
Expertise:
SQL
•
DQL
•
Performance
•
Query optimization
FAQ
Which databases do you support?
I work with MySQL, PostgreSQL, MS SQL, SQLite, and Oracle databases.
Can you optimize slow SQL queries?
Yes. I analyze the query structure and rewrite it for better performance and efficiency.
Do you write Regex for data extraction?
Yes. I can create custom Regex patterns to extract emails, phone numbers, IDs, or specific text.
What do you need to get started?
For SQL: table schema or sample data. For Regex: sample text and expected output.
Should I message before ordering?
Yes, a short discussion helps me understand your requirement and deliver faster.
