You will get your SQL queries fixed, debugged, and optimized
Project details
Need a SQL query that returns incorrect results, produces duplicate rows, fails with an error, or runs slowly? I will review your existing SQL, identify the cause, and deliver a clean, corrected, and maintainable query.
I specialize in Microsoft SQL Server and T-SQL, with hands-on experience in complex joins, aggregations, CTEs, subqueries, data validation, reporting, and large-scale data conversion.
Each delivery includes the corrected source code and a concise explanation of what changed. Optimization work is based on the schema, indexes, anonymized sample data, and execution plan you provide.
Package limits apply to the number and total size of queries. Large stored procedures, functions, triggers, dynamic SQL, database design, server administration, and scripts beyond the listed limits require a custom quote. Please message me before purchasing if the scope is unclear.
I specialize in Microsoft SQL Server and T-SQL, with hands-on experience in complex joins, aggregations, CTEs, subqueries, data validation, reporting, and large-scale data conversion.
Each delivery includes the corrected source code and a concise explanation of what changed. Optimization work is based on the schema, indexes, anonymized sample data, and execution plan you provide.
Package limits apply to the number and total size of queries. Large stored procedures, functions, triggers, dynamic SQL, database design, server administration, and scripts beyond the listed limits require a custom quote. Please message me before purchasing if the scope is unclear.
Database Type
MS SQLWhat's included
| Service Tiers |
Starter
$20
|
Standard
$45
|
Advanced
$75
|
|---|---|---|---|
| Delivery Time | 2 days | 3 days | 5 days |
Number of Revisions | 1 | 1 | 2 |
Number of Queries | 1 | 3 | 5 |
Query Debugging | |||
Query Optimization | |||
Query Scheduling | - | - | - |
Query Analysis | |||
Source Code |
Optional add-ons
You can add these on the next page.
Additional Query
(+ 1 Day)
+$15Frequently asked questions
About Silviu-Nicolae
Delphi & .NET Developer | SQL, APIs & Oracle Data Migration
Tartasesti, Romania - 1:17 am local time
in Delphi and SQL, with a specialization in the pharmaceutical
sector. My expertise encompasses the entire software development
process, including design, coding, and ongoing maintenance of
intricate applications. My track record demonstrates my active
involvement in all stages of software development.
I am not only an accomplished and devoted professional but also
someone who derives great satisfaction from utilizing analytical
functions to provide valuable insights. I am resolutely committed
to upholding the high performance standards of both my company
and the clients I serve. My dedication is reflected in my consistent
contributions to the enhancement of internal performance metrics.
My focus remains on personal and professional growth. I am
dedicated to honing my skills and expanding my capabilities. I
thrive in an environment that emphasizes progress, stability, and
Steps for completing your project
After purchasing the project, send requirements so Silviu-Nicolae can start the project.
Delivery time starts when Silviu-Nicolae receives requirements from you.
Silviu-Nicolae works on your project following the steps below.
Revisions may occur after the delivery date.
Review the SQL and requirements
I review the SQL code, database version, expected result, reported problem, schema, and supporting files to confirm the scope.
Debug, correct, and optimize
I identify logic, syntax, and performance problems, then rewrite or refactor the SQL within the selected package limits.