1st lesson free
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Bhuvana
- Rate €2
- Response 1h
€2/h
Contact
1st lesson free
- SQL
- PostgreSQL
Master SQL for Data Analytics and Placements: Querying, Joins, Window Functions, and Interview Problems
- SQL
- PostgreSQL
Lesson location
About Bhuvana
I am a Data Analytics & AI Specialist with extensive hands-on experience designing relational database schemas, optimizing complex SQL queries, and handling analytical data workflows. Having worked with production datasets in SQL, Python, and business intelligence environments, I know where learners encounter confusion—such as mastering table joins, handling NULL values, and writing efficient aggregations.
My teaching style is patient, clear, and focused on real-world execution. I break down abstract relational concepts into intuitive, bite-sized steps so students build genuine problem-solving speed and confidence. Whether you are studying for college exams, cracking technical interviews, or analyzing data for business reporting, I provide structured guidance tailored to your pace.
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About the lesson
- Primary
- Junior Cycle
- Transition Year
- +13
levels :
Primary
Junior Cycle
Transition Year
Fifth Year
Sixth Year
Adult education
Bachelor's degree
Master's degree
Diploma
Doctorate degree
Other
Beginner
Intermediate
Advanced
Professional
Kids
- English
All languages in which the lesson is available :
English
My SQL coaching focuses on building strong logical problem-solving skills rather than simply memorizing command syntax. Writing SQL queries is essential for data analysts, backend engineers, and anyone preparing for campus placement rounds.
A typical 60-minute class follows a practical structure:
Concept Foundation (10 mins): Breaking down database design, relationships, and query logic using clear diagrams.
Live Hands-On Querying (35 mins): We write queries together step-by-step using real datasets, covering essential operations like multi-table JOINs, GROUP BY aggregations, Common Table Expressions (CTEs), and Window Functions (RANK, DENSE_RANK, LEAD, LAG).
Placement & Interview Practice (15 mins): Solving real interview questions from platforms like LeetCode and HackerRank to test query optimization and edge cases.
What makes my classes unique is the direct integration with business analytics. You will learn not just how to extract data, but how to structure queries cleanly for reporting tools like Power BI and automated data pipelines.
These classes are designed for beginners starting from scratch, college students preparing for technical placement exams, and professionals seeking confident data querying skills. Classes are conducted patiently in clear English or Tamil.
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Rates
Rate
- €2
Pack prices
- 5h: €10
- 10h: €20
free lessons
The first free lesson with Bhuvana will allow you to get to know each other and clearly specify your needs for your next lessons.
- 1hr
online
- €2/h
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