Browse categories
Explore
Fiverr Pro
English
$
USD
I will fix sql queries and optimize your database
Software Engineer Web Developer Bug Fix Specialist
Software and Embedded Systems Engineering profile with practical experience in web projects, programming, and digital entrepreneurship. Owner of the online store Ludideck.ma, I have developed strong s...
About this Gig
Need help with SQL queries, database errors or slow queries?
I can write, fix, debug and optimize SQL queries for MySQL, SQL Server, PostgreSQL and Oracle databases.
My services include:
- Writing and fixing SQL queries
- SQL query optimization
- JOINs, subqueries and complex queries
- Database troubleshooting
- MySQL and SQL Server queries
- PostgreSQL and Oracle SQL
- Database structure and normalization
- Tables, relationships and constraints
- Stored procedures, functions and views
- Import and export of database data
- ERD and database schema assistance
Whether you need to fix a broken SQL query, improve database performance or create new queries for your project, I can provide a clean and reliable solution.
I focus on fast delivery, accurate SQL code and clear communication.
Please contact me before ordering for complex database projects or tasks involving multiple databases.
Database type:
Relational database
Platform:
MySQL
•
Oracle
•
PostgreSQL
•
SQL Server
Expertise:
Data structure
•
Normalization
•
SQL
•
Query optimization
My Portfolio
FAQ
What database platforms do you work with?
I work with MySQL, SQL Server, PostgreSQL and Oracle databases. I can write, fix, debug and optimize SQL queries for these platforms.
Can you fix slow or incorrect SQL queries?
Yes. I can debug incorrect SQL queries, fix syntax or logic errors and improve query performance using joins, indexes and query optimization techniques.
Can you write complex SQL queries?
Yes. I can create SQL queries using JOINs, subqueries, aggregation, views, stored procedures and other advanced SQL features depending on your database.
Can you help with database design and normalization?
Yes. I can help improve table structure, relationships, constraints and normalization, and provide an ERD when required.
What do you need before starting my SQL task?
Please provide your database platform, table structure or schema, the SQL query or error if available, and a clear description of the expected result.
