I will fix your slow sql queries and speed up your database

China

I speak Chinese, English

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Versatile Data Specialist, Translator and Engineering Assistant

Hi! I'm a detail-oriented professional with a Civil Engineering background, dedicated to providing high-quality support. 🛠️ Services: 📊 Data Entry: Fast data entry, Excel cleanup, web research & W...
About this Gig

Slow queries killing your app? Database timing out under load?

Pages taking forever to load because of bad SQL? I'll make

your database fast again.


I work with MySQL, PostgreSQL, SQL Server, and SQLite. Doesn't

matter if it's a WordPress site, a SaaS app, or an internal

dashboard slow is slow, and I'll fix it.


WHAT I FIX:

- Slow SELECT queries that scan too many rows

- Missing or inefficient indexes

- N+1 query problems in your ORM

- Deadlocks and transaction bottlenecks

- Table scans instead of index seeks

- Poorly written JOINs and subqueries

- Database config issues (buffer pool, connections, etc.)


WHAT YOU GET:

- EXPLAIN / execution plan analysis

- Rewritten fast queries with performance comparison

- Index recommendations with before/after benchmarks

- Clean documentation of every change made


HOW IT WORKS:

1. Share your slow query or database issue

2. I analyze execution plans and find bottlenecks

3. I deliver optimized queries with benchmarks

4. You deploy I support you if anything needs tuning


No guesswork. Just faster queries backed by EXPLAIN output

and real numbers. Message me before ordering.

Database type:

Centralized database

Distributed database

Platform:

MariaDB

MySQL

PostgreSQL

SQL Server

Expertise:

Normalization

SQL

Performance

Query optimization