I will write optimize and fix sql tsql queries for your database

Bulgaria

I speak Bulgarian, English

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Hi, I'm Stefan — I work with data and reporting on a daily basis. I work daily with T-SQL, Excel, and Salesforce Marketing Cloud as part of a data/marketing operations role. I help clients write and ...
About this Gig

Need someone reliable to write, fix, or optimize SQL queries? I've got you covered.


I work with T-SQL daily and can help you with:

  • Writing SELECT, JOIN, and subquery statements from scratch
  • Fixing broken or slow-running queries
  • Optimizing query performance
  • Writing stored procedures
  • Cleaning and transforming data with SQL
  • Explaining what a query does, in plain language


Whether you're a business owner who needs a one-off report, a student stuck on an assignment logic issue, or a company that needs recurring database support I'll get it done accurately and on time.


Message me before ordering if your task doesn't fit the packages below I'm happy to give a custom quote.


Why work with me:

  • Currently working hands-on with enterprise data systems (Salesforce Marketing Cloud) daily
  • Clear communication, no jargon unless you want it
  • Fast turnaround, careful with your data

Technology:

Excel

Google Sheets

MATLAB

SPSS

Expertise:

API integration

Data extraction

Data flow

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