I will write sql queries, design database schemas, and fix sql errors

Leonel Joao

Angola

I speak English, Portuguese, French

Website developer, website development, SQL Database manager, fix bug

My name is Leonel João and I'm a profissional Website Developer specialized in web solutions and frontend. With a strong command C, PHYTON, HTML , CSS, JAVASCRIPT, SQL and PHP and new technology (HTML...
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About this Gig

Struggling with SQL queries, database errors, or designing a clean database schema? I am here to help you build reliable, efficient, and well-structured database solutions!


Whether you need help with a quick homework/project query, optimizing a slow SQL command, or designing an entire database architecture from scratch, Ive got you covered.


What I Can Do For You:


Write and optimize SQL queries (MySQL, PostgreSQL, SQLite, MS SQL)


Fix SQL syntax and logical errors


Design Entity-Relationship (ER) Diagrams and Schemas


Create Relational Database Tables with Foreign Keys & Constraints


Complex JOINs, Aggregations, and Subqueries


Why Choose My Service?


Clean & Well-Commented Code: Easy to understand and integrate.


Fast Delivery: Emergency options available.


100% Satisfaction Guarantee: Clear communication at every step.


Please message me before placing an order to discuss your requirements

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write sql queries, design database schemas, and fix sql errors
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