Browse categories
Explore
Fiverr Pro
English
$
USD
I will write sql queries,fix database errors, and create er diagrams
Turning raw data into clear business decisions Python, SQL, Power BI expert
Hi, I'm Hasnain, a Data Analyst who turns messy data into clear, useful insights. I work with Python for data cleaning and analysis, SQL for queries, CTEs, joins and window functions, and Power BI for...
About this Gig
Need help with MySQL queries or database problems?
I will help you write SQL queries, fix query errors, analyze data, and understand your database structure.
My Services:
- Custom MySQL query writing
- SQL JOINs, subqueries, CTEs, and aggregate functions
- Data filtering, sorting, grouping, and analysis
- SQL query debugging and error fixing
- ER diagrams using MySQL Workbench
- Database tables, primary keys, foreign keys, and relationships
- Basic query performance optimization
Why Work With Me?
- Clear communication
- Organized and understandable SQL code
- Solutions tailored to your requirements
- Careful testing with the database structure provided
What I Need From You:
Please share your task requirements, relevant table structures, sample data (if needed), and any existing SQL query or error message.
Please contact me before ordering if you need a complex database design, a large project, or services outside the listed scope.
Let's solve your MySQL and SQL problems together!
Database type:
Relational database
Platform:
MS SQL
Expertise:
SQL
•
DDL
•
DQL
•
ER diagrams
My Portfolio
FAQ
What information do you need to start?
Please provide your task requirements, relevant table structures, sample data if necessary, and any existing query or error message.
Which database plateform do you work with?
I primarily work with MySQL and MySQL Workbench. Please contact me before ordering if your project uses another database platform.
Can you solve SQL assignments and analytical questions?
Yes, I can help write SQL queries to answer data-related questions based on the database structure and requirements you provide.
Can you create an ER diagrams form an existing database?
Yes. I can help generate an ER diagram from a compatible MySQL database using reverse engineering. Existing relationships will be checked, and missing relationships may require clarification or manual work.
Do you provide database optimization for every project?
Basic query review and optimization are available where included in your package. The improvement depends on the query, schema, indexes, and available execution details.
