Parcourir les catégories
Explorer
Fiverr Pro
Français
$
USD
I will design your sql database, erd diagram, and write optimized queries
WordPress Website Designer, Python and CS Assignment, Database, SQL Specialist
Hi, I'm Ali Raza, software engineer & WordPress developer with 5+ years of experience across 3 specialities:
1. WordPress Websites: Conversion-focused fitness, gym & personal trainer sites using Eleme...
À propos de ce service
Need a clean, normalized database with a professional ERD delivered fast with complete SQL scripts ready to run?
With 3+ years of hands-on database development experience across academic and real-world projects, I design efficient, fully normalized databases and write optimized SQL that actually performs.
WHAT I DELIVER:
- Database Design: Conceptual, logical & physical schema
- ERD & UML Diagrams: Clean, professional entity-relationship diagrams
- Normalization: 1NF, 2NF, 3NF, BCNF with full step-by-step documentation
- SQL Queries: SELECT, JOIN, subqueries, views, triggers, stored procedures
- Platforms: MySQL, PostgreSQL, Oracle, MS SQL Server, MS Access, SQLite
- DDL / DML / TCL / DCL operations
- Query Optimization & Troubleshooting
- Complete Documentation & Reports
WHY CLIENTS CHOOSE ME:
- Every design is fully normalized: no redundancy, no anomalies
- Clean ERDs created in draw.io, Lucidchart, or your preferred tool
- Complete SQL scripts delivered ready to execute immediately
- Step-by-step explanation so you understand the design logic
- Fast turnaround most projects delivered in 13 days
Inbox me with your requirements.
FAQ
1. What database systems and SQL platforms do you work with?
I specialize in MySQL, Oracle, PostgreSQL, SQL Server, and SQLite. I can handle all SQL dialects and database management systems, ensuring your project works perfectly with your required platform.
2. What's included in your database design service?
Complete database design including ERD diagrams, normalized table structures, relationship mapping, constraint definitions, indexing strategies, and comprehensive documentation. I deliver both visual diagrams and implementation-ready SQL scripts.
3. Can you create complex SQL queries for data analysis and reporting?
Absolutely! I write advanced SQL queries including JOINs, subqueries, stored procedures, triggers, views, window functions, and complex data analysis queries. Perfect for business intelligence and reporting requirements.
4. Do you provide ERD diagrams and database documentation?
Yes! Every project includes professional ERD diagrams showing entities, relationships, cardinalities, and constraints. I also provide complete database documentation with table descriptions, data dictionaries, and implementation guides.
5. Can you integrate databases with programming applications?
Definitely! I create database-connected applications using Python (SQLAlchemy, PyMySQL), Java (JDBC), C# (ADO.NET), and web technologies. I handle both backend database logic and frontend GUI integration.
6. What types of database projects can you handle?
I work on all database projects: e-commerce systems, inventory management, student information systems, library management, hospital databases, financial systems, and custom business applications with full CRUD operations.
7. Do you optimize database performance and write efficient queries?
Yes! I focus on query optimization, proper indexing, normalization (1NF to 3NF), performance tuning, and efficient database design. Your queries will run fast and your database will scale properly.
8. Can you convert existing data or migrate between database systems?
Absolutely! I handle data migration, database conversion between different systems (MySQL to Oracle, etc.), data cleaning, ETL processes, and ensuring data integrity throughout the migration process.
9. Do you create stored procedures, triggers, and advanced database features?
Yes! I develop stored procedures, triggers, functions, views, user-defined data types, and implement advanced database features like transaction management, concurrency control, and security measures.
10. What do you deliver with my database project?
You'll receive: complete SQL scripts for database creation, ERD diagrams, sample data insertion scripts, comprehensive documentation, query examples, and if requested, a connected application demonstrating full functionality with detailed reports.
Avis
2 avis concernant ce service
| (2) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Détails de la notation
- Niveau de communication avec le freelance
- Qualité de la livraison
- Valeur de la livraison
Trier par
Les plus pertinents
S sarahnity10
États-Unis
Followed all instructins clearly. Great work delivered early too. Is professional!
50 $US-100 $US
Prix
7 jours
Durée
C 
Réponse du freelance
Utile?H h_0224
Royaume-Uni
Amazing to work with, goes above and beyond with his services and offers great detail with projects, communication is always quick and helps as much as possible I would definitely use again and highly recommend to others to use aswell
Jusqu’à 50 $US
Prix
7 jours
Durée
Utile?
Avis
2 avis concernant ce service
| (2) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Détails de la notation
- Niveau de communication avec le freelance
- Qualité de la livraison
- Valeur de la livraison
Trier par
Les plus pertinents
S sarahnity10
États-Unis
Followed all instructins clearly. Great work delivered early too. Is professional!
50 $US-100 $US
Prix
7 jours
Durée
C Réponse du freelance
Utile?H h_0224
Royaume-Uni
Amazing to work with, goes above and beyond with his services and offers great detail with projects, communication is always quick and helps as much as possible I would definitely use again and highly recommend to others to use aswell
Jusqu’à 50 $US
Prix
7 jours
Durée
Utile?
