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I will support sql in oracle, mysql, sql server
Making Data Talk!
with 3+ years of proven experience turning complex data into clear, actionable insights. I’ve completed 100+ projects for businesses in e-commerce, healthcare, and finance, delivering:
- Excel‐based d...
Level 1
Hat bestimmte Leistungskriterien erfüllt und zeigt großes Potenzial auf dem Marktplatz.
Schnelle Antwortzeit
Zeichnet sich durch besonders schnelle Antwortzeit aus.
Über diesen Service
Are you looking for a skilled SQL expert to write efficient queries or customize your database on Oracle, MySQL, or MSSQL?
You're in the right place!
With hands-on experience in database development and management, I will help you with:
Writing optimized SQL queries (SELECT, JOIN, GROUP BY, etc.)
- Creating and modifying tables, views, indexes, and stored procedures
- Normalizing or redesigning your database schema
- Debugging and fixing SQL errors or performance issues
- Importing/exporting data and writing complex scripts
- Database customization and automation tasks
- Creating ER diagrams and documentation (on request)
Supported Databases:
- Oracle
- MySQL
- Microsoft SQL Server (MSSQL)
Why choose me?
- Quick delivery
- Clean and optimized code
- 100% satisfaction guaranteed
- Great communication and support
Feel free to message me before placing an order to discuss your requirements in detail.
Plattform:
MS SQL
•
mySQL
•
Oracle
•
SQL Server
Expertise:
SQL
•
NoSQL
•
ER-Diagramme
•
Abfragenoptimierung
Mein Portfolio
FAQ
Can you help me write complex SQL queries?
Yes! I can write all types of queries including complex joins, subqueries, nested queries, CTEs, window functions, and more — tailored to your exact requirements.
Can you design a database from scratch?
Absolutely. I can design a normalized database schema, create ER diagrams, and build the tables using best practices for Oracle, MySQL, or MSSQL.
I already have a database. Can you improve or optimize it?
Yes. I can analyze your current schema or queries, find inefficiencies, and optimize your SQL code or database structure for better performance.
What if I don’t know which database I’m using?
No problem! Just share a sample of your data or application, and I’ll help you identify the database type and recommend the best approach.
Will my data and project be kept confidential?
Absolutely. I take your privacy seriously. All shared files and data remain confidential and are never reused or shared.
Bewertungen
1 Bewertungen für diesen Service
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Zusammensetzung der Bewertung
- Kommunikation
- Qualität der Lieferung
- Preis-Leistungs-Verhältnis der Lieferung
Sortieren nach:
Am relevantesten
A aps1000
Wiederkehrender Kunde
Vereinigte Staaten
I am very happy to be doing business again. Very talented and problem solver.
Bis zu 50 $
Preis
1 Tag
Dauer
Hilfreich?
Bewertungen
1 Bewertungen für diesen Service
| (1) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Zusammensetzung der Bewertung
- Kommunikation
- Qualität der Lieferung
- Preis-Leistungs-Verhältnis der Lieferung
Sortieren nach:
Am relevantesten
A aps1000
Wiederkehrender Kunde
Vereinigte Staaten
I am very happy to be doing business again. Very talented and problem solver.
Bis zu 50 $
Preis
1 Tag
Dauer
Hilfreich?
