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$
USD
I will write advanced sql queries and optimize your database
SQL Developer, Data Analyst, Excel, Dashboard and Database Expert
I'm a SQL Developer & Data Analyst specializing in SQL, PL/SQL, Excel, databases, dashboards, and data analysis. I help businesses clean, organize, analyze, and visualize data to support better decisi...
About this Gig
Need a reliable SQL expert to design, optimize, or troubleshoot your database? You're in the right place!
I provide professional SQL database solutions for businesses, students, startups, and developers. Whether you need a simple SQL query or a complete relational database, I deliver clean, optimized, and well-documented solutions.
My services include:
- SQL Query Writing & Debugging
- Database Design (Relational Databases)
- ERD (Entity Relationship Diagram)
- Complex Joins & Subqueries
- CTEs & Window Functions
- Views & Stored Procedures
- Query Optimization
- Data Import & Export
- Business Reports & Analytics
- MySQL, PostgreSQL, SQL Server & SQLite
- Database Documentation
Why choose me?
- Clean and optimized SQL code
- Professional database design
- Fast communication
- On-time delivery
- Well-documented solutions
- Business-oriented analytical reports
My portfolio includes a complete banking database project featuring:
- Relational database design
- 25+ tables
- Stored procedures
- Database views
- Advanced analytical queries
- Business reporting
- Query optimization
Whether you need help with MySQL, PostgreSQL, SQL Server, SQLite, or a custom SQL project, I'm ready to help.
Platform:
MS Access
•
Oracle
•
PL/SQL
•
SQL Server
Expertise:
Data structure
•
Data warehouse
•
Design
•
SQL
•
Performance
My Portfolio
FAQ
Which databases do you support?
I work with MySQL, PostgreSQL, Microsoft SQL Server, SQLite, and other relational SQL databases.
Can you fix SQL errors?
Yes. I can debug SQL syntax errors, optimize slow queries, fix joins, stored procedures, views, and improve overall database performance.
Can you design a database from scratch?
Yes. I can create a complete relational database, including tables, relationships, primary/foreign keys, and an ERD.
Do you write advanced SQL queries?
Yes. I write complex SQL queries using JOINs, CTEs, Window Functions, Aggregations, Views, and Stored Procedures.
Will my data remain confidential?
Absolutely. Your project and data will remain confidential and will never be shared with third parties.
Do you provide documentation?
Yes. Every project includes clean, well-commented SQL code, and larger projects can include database documentation and ERDs.
