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I will do sql database design, erd, queries, projects in oracle mysql postgresql
Full Stack Web Developer
Hi, I’m Zubair Ghaffar, a Full Stack Web Developer with over 4 years of experience helping businesses grow through powerful, high-performance websites.
I don’t just write code; I engineer robust digi...
About this Gig
Do you need to design and develop a secure, scalable database? I specialize in handling complex SQL database projects, creating detailed ER Diagrams, and writing optimized SQL queries. I work with Oracle, MySQL, and PostgreSQL to build robust backend systems.
I will transform your raw requirements into a professional, normalized database. Whether you need a quick query fix or a full schema design, I deliver precision.
MY SERVICES INCLUDE: Database Design: Complete Conceptual, Logical, and Physical models. ER Diagrams (ERD): Entity Relationship Diagrams and Relational Schemas. Normalization: Reducing redundancy (1NF, 2NF, 3NF, BCNF) for data integrity. SQL Queries: Complex Joins, Subqueries, Views, Aggregates, and CRUD. Advanced SQL: Stored Procedures, Triggers, Functions, and Cursors. Schema Creation: DDL/DML scripts, Constraints, Primary/Foreign Keys, and Indexes. Optimization: Debugging syntax errors and query performance tuning.
TECHNOLOGIES: Oracle Database MySQL PostgreSQL MS SQL Server SQLite
WHY CHOOSE ME? I guarantee 100% quality, efficient code, and timely delivery. I provide fully commented source code and assistance with installation if required.
FAQ
What information do you need to get started?
To ensure the best results, please provide a clear description of your project requirements, any specific business rules, and the database platform you prefer (e.g., Oracle, MySQL, PostgreSQL). If you have existing sketches or partial schemas, please share those as well.
Which database management systems do you support?
I specialize in the industry-standard platforms: Oracle, MySQL, PostgreSQL, and MS SQL Server. If you need work done in SQLite or MS Access, I can accommodate that as well.
Will you provide the source code and diagrams?
Yes! All packages include the full SQL source code (.sql scripts) for creating tables and inserting data. For design work, you will receive high-quality exports of the ER Diagrams and schemas in your preferred format (PDF, PNG, or JPEG).
Do you handle database normalization?
Absolutely. I ensure all database designs are normalized to at least 3NF (Third Normal Form) to eliminate data redundancy and ensure long-term data integrity and performance.
Can you fix or optimize my existing SQL queries?
Yes. I can debug errors in your existing code, optimize slow-running queries for better performance, and rewrite complex logic using advanced features like Joins, Subqueries, and Stored Procedures.
