Sfoglia categorie
Esplora
Fiverr Pro
Italiano
$
USD
I will expertly write and tune sql queries for any database
Oracle Certified DBA, SQL, PLSQL Expert, Data Analytics, DB Mgmt Pro!
I’m an experienced Database Administrator & Software Developer with 19+ years of expertise in database administration, database management, SQL & PL/SQL development, and data analytics across banks, ...
Informazioni su questo servizio
Is your SQL query running slow or producing incorrect results?
Do you need optimized, accurate, and high-performing SQL queries for Oracle, SQL Server, MySQL, or PostgreSQL?
I am a Database Specialist (Oracle & SQL Server DBA) with years of experience in SQL development, optimization, and performance tuning. Ill help you analyze, fix, and optimize your SQL queries to ensure maximum efficiency and reliability.
What I Offer
- Custom SQL query writing (simple to complex)
- Query performance tuning & optimization
- Debugging and fixing slow or failing queries
- Database design and normalization support
- Stored procedures, functions, views & triggers
- Query-based reporting and data analysis
- Data migration and integration queries
- Database structure review and optimization
Supported Databases
- Oracle
- Microsoft SQL Server
- MySQL
- PostgreSQL
Why Choose Me
⭐ 100% query accuracy and efficiency
⭐ Fast response and on-time delivery
⭐ Professional communication
⭐ Secure handling of your database structure and data
" Please contact me with your requirements before placing an order to ensure accurate delivery and pricing."
Piattaforma:
db2
•
MS SQL
•
MySQL
•
Oracle
•
PL/SQL
•
PostgreSQL
•
SQL server
Expertise:
Data warehouse
•
Design
•
SQL
•
NoSQL
•
Performance
Altri servizi della categoria Database offerti da me
FAQ
What do you need to start the work?
Please share your database type (Oracle, SQL Server, MySQL, etc.), table structure or sample data, and a brief description of what you want — such as the query purpose, expected result, or performance issue.
Is my database and data safe with you?
Absolutely. Your data is 100% secure and confidential. I never store, share, or reuse any client information.
Can you optimize my existing SQL queries or procedures?
Yes. I’ll review your current SQL code, find performance bottlenecks, and optimize it for speed and efficiency without changing results.
I don’t know what’s causing the slow performance — can you help?
Of course. Just send me your query or describe the issue, and I’ll analyze and identify the root cause with recommended fixes.
Do you work with large or complex databases?
Yes. I specialize in enterprise-level databases and handle complex joins, heavy data loads, and performance tuning for reports and analytics.
Can you write PL/SQL or T-SQL code?
Definitely. I can create or optimize PL/SQL (Oracle) and T-SQL (SQL Server) procedures, functions, triggers, and views.
What if I need more queries or faster delivery than the package offers?
No problem. Please message me before ordering, and I’ll send a custom offer tailored to your needs and timeline.
Do you provide documentation or explanation for your queries?
Yes, if required. I can include query explanations and optimization notes as part of the Premium package or a gig extra.
Recensioni
20 recensioni per questo servizio
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Valutazione dettagliata
- Livello di comunicazione del venditore
- Consiglia a un amico
- Servizio conforme alla descrizione
Ordina per
Più rilevante
E 
eblessed10
Cliente abituale
Regno Unito
Excellent guy! Prompt response, accurate work.
Utile?L labussaneela
Cliente abituale
Canada
Amazing work. Always on or before time Very knowledgeable person. Very easy in communication and best after job completion support.
Utile?L labussaneela
Cliente abituale
Canada
Amazing. Seller is very kind and helpful.
Utile?L labussaneela
Cliente abituale
Canada
Amazing experience. Job well done even the time was short. Answered all of my queries promptly.
Utile?L labussaneela
Cliente abituale
Canada
Excellent job as promised. He is always wiling to support as per your need. Respond quickly even after completion of order.
Utile?
Recensioni
20 recensioni per questo servizio
| (19) | ||
| (1) | ||
| (0) | ||
| (0) | ||
| (0) |
Valutazione dettagliata
- Livello di comunicazione del venditore
- Consiglia a un amico
- Servizio conforme alla descrizione
Ordina per
Più rilevante
E eblessed10
Cliente abituale
Regno Unito
Excellent guy! Prompt response, accurate work.
Utile?L labussaneela
Cliente abituale
Canada
Amazing work. Always on or before time Very knowledgeable person. Very easy in communication and best after job completion support.
Utile?L labussaneela
Cliente abituale
Canada
Amazing. Seller is very kind and helpful.
Utile?L labussaneela
Cliente abituale
Canada
Amazing experience. Job well done even the time was short. Answered all of my queries promptly.
Utile?L labussaneela
Cliente abituale
Canada
Excellent job as promised. He is always wiling to support as per your need. Respond quickly even after completion of order.
Utile?
