1st lesson free
Sreekar
- Rate R231
- Response 1h
R231/h
Contact
1st lesson free
- Computer Programming
- Python
- Programming Languages
- SQL
SQL Tutoring From a TestGorilla-Verified 83rd Percentile Data Analyst — Real Practice, Real Results
- Computer Programming
- Python
- Programming Languages
- SQL
Lesson location
About Sreekar
I am Sreekar Koduru, a data analyst and Master of Computer Science graduate (Bishop's University Canada, 2026) with nearly three years of professional experience in data analytics, business intelligence, and SQL-based data engineering.
I have worked at Cognizant Technology Solutions where I wrote complex SQL queries daily against large production datasets across MySQL, PostgreSQL, and Snowflake environments, built Power BI dashboards verified at the 91st percentile globally, and automated analytical workflows using Python. I have also completed two independent end-to-end data analytics projects -- a Canadian Mortgage Renewal Risk Analytics solution and a Toronto Restaurant Risk and Compliance Intelligence System -- both publicly available at sreekarkoduru.com.
My SQL skills are independently verified at the 83rd percentile globally by TestGorilla, a globally recognized skills assessment platform. I did not just pass -- I outperformed 83% of all SQL candidates assessed worldwide.
Outside of work I genuinely enjoy helping others understand data. I find satisfaction in breaking down complex concepts into something clear, practical, and immediately usable. If you are learning SQL for a career change, a job interview, or simply to get more out of your data at work, I would love to help you get there.
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About the lesson
- Primary
- Secondary
- Matric/GCSE
- +13
levels :
Primary
Secondary
Matric/GCSE
AS Level
A Level
BTech
Adult education
Masters
Doctorate
Other
MBA
Beginner
Intermediate
Advanced
Professional
Kids
- English
Languages in which the lesson is available :
English
I am a data analyst with nearly three years of professional experience using SQL daily to extract, transform, validate, and analyze large datasets. My SQL proficiency is independently verified at the 83rd percentile globally on a TestGorilla certified assessment -- meaning I scored higher than 83% of all SQL candidates assessed worldwide.
I hold an MSc in Computer Science from Bishop's University Canada and have worked with SQL across MySQL, PostgreSQL, and Snowflake environments on real production datasets of over one million records.
In my lessons I focus on what actually matters in the workplace -- writing clean queries, understanding joins, using CTEs and window functions, filtering and aggregating data correctly, and debugging queries that do not behave as expected. I adapt every session to your goals, whether you are a complete beginner learning SELECT statements for the first time, a business analyst trying to get more out of your data, or someone preparing for a technical SQL interview.
I believe the fastest way to learn SQL is by working through real problems rather than memorizing syntax. Every lesson is practical, patient, and tailored to where you are right now.
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Rates
Rate
- R231
Package rates
- 5h: R1155
- 10h: R2310
free lesson
The free first lesson with Sreekar allows you to get to know the tutor and discuss your needs and expectations.
- 1h
online
- R231/h
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