You will get a fully optimized SQL query or database performance tune

Let a pro handle the details

Buy Database Queries services from Leonardo, priced and ready to go.

Let a pro handle the details

Buy Database Queries services from Leonardo, priced and ready to go.

Project details

Is a slow-performing database query bottlenecking your application, causing timeouts, or spiking CPU usage? As a Senior Backend and Database Engineer, I will isolate and resolve your database performance issues quickly and securely.

This project is designed to deliver rapid turnaround tuning for relational databases (including SQL Server, PostgreSQL, and Oracle SQL/PL-SQL).

What this project includes:

Root-Cause Analysis: Comprehensive review of execution plans, index usage, and table scans to locate the exact bottleneck.

Query Refactoring: Rewriting inefficient joins, bad subqueries, and heavy aggregate functions into clean, optimized SQL or CTEs.

Indexing Strategy: Identifying missing indexes, composite keys, or redundant constraints to maximize data retrieval speed.

Verification: Detailed technical summary explaining the root cause and confirming the performance improvement.

Please note: This contract is strictly scoped to optimization and tuning to ensure rapid delivery. For architectural restructuring or ongoing data management tasks, we can easily transition to an hourly contract.
Database Type
MySQL, MS SQL, Oracle, SQLite, PostgreSQL
What's included
Service Tiers Starter
$50
Standard
$120
Advanced
$300
Delivery Time 1 day 3 days 5 days
Number of Revisions
112
Number of Queries
135
Query Debugging
-
-
-
Query Optimization
Query Scheduling
-
-
-
Query Analysis
Source Code
-
-
-
Optional add-ons You can add these on the next page.
Fast Delivery
+$40
Additional Revision
+$30
Additional Query (+ 1 Day)
+$40

Frequently asked questions

Leonardo L.Status: Offline

About Leonardo

Leonardo L.Status: Offline
Senior Backend Engineer | C# .NET & Database Optimization
Brasilia, Brazil - 7:50 pm local time
Need a critical backend bug fixed, a secure API integrated, or a slow database optimized today?
As a Senior Software Engineer with over a decade of hands-on experience building secure, high-performance systems, I step in to solve complex architecture and backend bottlenecks without the fluff.

Whether you need a legacy system stabilized, clean C#/.NET APIs developed, or relational database queries tuned for speed, I deliver production-ready, highly secure code.

Steps for completing your project

After purchasing the project, send requirements so Leonardo can start the project.

Delivery time starts when Leonardo receives requirements from you.

Leonardo works on your project following the steps below.

Revisions may occur after the delivery date.

Code & Schema Analysis

I will review your table definitions, current indexes, and query execution plans. I'll isolate the exact operational bottlenecks causing slow performance or timeouts.

Query Refactoring & Index Optimization

I will rewrite inefficient joins, subqueries, or legacy logic into clean, high-performance SQL/CTEs. I will also generate optimized indexing strategies to minimize database read overhead.

Review the work, release payment, and leave feedback to Leonardo.