Browse categories
Explore
Fiverr Pro
English
$
USD
I will write sql queries and automate your data workflows
About this Gig
Do you need help writing, fixing, or understanding SQL queries?
I provide clean, accurate, and well-structured SQL solutions for Microsoft SQL Server and Azure SQL Database.
My services include:
- Simple and complex SQL queries
- SELECT, INSERT, UPDATE, and DELETE statements
- JOINs, filters, GROUP BY, and aggregate functions
- Subqueries and data summaries
- Debugging existing queries
- Creating or modifying basic database structures
- Data cleaning and validation
- Clear comments and query documentation
To get started, please provide the database platform, table and column structure, sample data, and a clear description of the expected result.
Please contact me before placing an order, especially for complex queries, multiple tables, debugging, or database modifications.
For security, please remove or anonymize confidential and personal information before sharing any files.
Database type:
Centralized database
•
Relational database
Platform:
MS SQL
•
MySQL
•
PostgreSQL
•
SQL Server
Expertise:
SQL
•
DDL
•
DML
•
DQL
FAQ
Should I contact you before ordering?
Yes, especially for multiple tables, complex queries, debugging, database modifications, integrations, or custom requirements. This allows me to confirm the appropriate package, scope, and deliverables.
What information do you need to start?
Please provide your database platform, table and column structure, relationships between tables, sample data, and a clear description of the expected result. For debugging, include the existing query and complete error message.
What types of SQL queries can you create?
I can create SELECT, INSERT, UPDATE, and DELETE statements, including filters, JOINs, GROUP BY, aggregate functions, and subqueries. The complexity and number of queries depend on the selected package.
Can you fix an SQL query that is not working?
Yes. Please provide the current query, complete error message, table structure, sample data, and expected output. Debugging is limited to the number of queries included in your package or extras.
Can you work with multiple tables?
Yes. Standard and Premium packages can include related tables, JOINs, summaries, and business rules. Please contact me before ordering if your project involves many tables or complex relationships.
