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Fiverr Pro
Nederlands
$
USD
I will create sql queries and optimize databases
Over deze dienst
Are you stuck with SQL queries or need help managing your database? I can help!
I am an experienced SQL expert and database developer specializing in writing efficient SQL queries, fixing database errors, and designing ER diagrams. Whether you are working with MySQL, PostgreSQL, SQL Server (MSSQL), or SQLite, I deliver customized SQL solutions tailored to your project.
My SQL services include:
- Writing custom SQL queries (SELECT, JOIN, INSERT, UPDATE, DELETE)
- Database design, normalization, and schema creation
- Building clear Entity-Relationship (ER) diagrams
- Optimizing slow queries and improving performance
- Debugging and fixing database errors or bugs
- Designing stored procedures, triggers, and functions
- Data extraction, reporting, and analytics using SQL scripts
Why choose me?
- Professional SQL coding that is efficient and reliable
- Fast, clear communication with ongoing support
- On-time delivery with attention to detail
- Free consultation to understand your requirements before you order
Platform:
ms access
•
MS SQL
•
MySQL
•
PostgreSQL
Expertise:
SQL
•
ER-diagrammen
•
Normalisatie
•
Query-optimalisatie
Veelgestelde vragen
What types of SQL databases do you work with?
I work with popular relational databases such as MySQL, PostgreSQL, SQL Server (MSSQL), and SQLite. I can also assist with query tasks involving cloud databases or custom setups if needed
Can you help debug or fix errors in my SQL queries?
Absolutely. I can identify syntax errors, logical issues, and performance problems in your queries, and provide clean, working solutions with explanations if needed.
Can you design a complete database schema with tables and relationships?
Yes, I can create fully normalized database schemas based on your project requirements, including table creation, foreign keys, and Entity Relationship Diagrams (ERDs)
Do you offer query optimization services?
Yes. If your query is slow or inefficient, I can analyze it and optimize it using indexing, restructuring, or using more efficient query patterns to improve performance.
Can you automate or schedule queries for regular execution?
Yes. I can help you schedule SQL queries using tools like SQL Server Agent, cron jobs, or other database schedulers, depending on your environment.
Will you explain the queries or structure if I don’t understand something?
Definitely. If requested, I can include comments in the code or provide a brief explanation of what the queries or database structures are doing.
What if I need changes after delivery?
Each package includes a set number of revisions. I am committed to ensuring you're satisfied with the final delivery. Additional changes beyond the included revisions can be requested as gig extras
Reviews
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J jimmycarter90
Verenigde Staten
Liz did a great job on my SQL project. They delivered on time, communicated clearly, and provided exactly what I needed. I’d definitely recommend them and work with them again
US$ 50
Prijs
5 dagen
Looptijd
Nuttig?
Reviews
1 reviews van deze dienst
| (1) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Specificering van de beoordeling
- Communicatieniveau van de freelancer
- Kwaliteit van de levering
- Waarde van de levering
Sorteer op
Meest relevant
J jimmycarter90
Verenigde Staten
Liz did a great job on my SQL project. They delivered on time, communicated clearly, and provided exactly what I needed. I’d definitely recommend them and work with them again
US$ 50
Prijs
5 dagen
Looptijd
Nuttig?
