I will write sql queries for your data

United States

I speak English

SQL and ERP Troubleshooting

I troubleshoot ERP/WMS systems and write SQL to fix messy inventory data — including legacy/homebrew platforms (AIX/RS6000-era) most freelancers won't touch. If your numbers don't add up or your syste...
About this Gig

Struggling with messy data, broken queries, or reports that don't add up? I write clean, accurate SQL to pull, filter, and organize your data so it actually makes sense.

Whether you need a single query fixed, multiple tables joined, or a full data cleanup and audit, I focus on fast, reliable results no unnecessary complexity, just working solutions.

What I offer:

Custom SQL queries (SELECT, filters, joins)

Query debugging and optimization

Data cleaning and reconciliation

Multi-table joins and reporting

Clear written summaries of findings

I work with data from a variety of systems, including legacy and less common platforms that other freelancers often avoid. If your data lives in an older or non-standard setup, that's not a problem I know how to work with it.

My approach is straightforward: understand what you actually need, deliver clean and functional SQL, and communicate clearly throughout. No jargon, no runaround just results you can use.

Send me a sample of your data or a description of the problem, and I'll let you know honestly whether I can help and how fast I can get it done.

Let's get your data working for you.

Database type:

Centralized database

Distributed database

Platform:

BigQuery

MySQL

SQL Server

Other

Expertise:

SQL

Big data

Normalization

Performance

My Portfolio

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