Varun kumar - Postgresql tutor - Bengaluru

1^st lesson belanja

Varun kumar

Rate RM30
Response 1h

RM30/h

1^st lesson belanja

PostgreSQL

Beginner-Friendly SQL Classes: Learn Queries, Joins and Window Functions Step by Step with Real-Life

PostgreSQL

Lesson location

- online

About Varun kumar

Hi, I'm Varun Harsh, a data analytics professional based in Bengaluru. I hold a B.Tech in Computer Science and Engineering from Chandigarh University, and I work with SQL, Power BI (DAX and Power Query), Python (Pandas and NumPy) and Advanced Excel.
I started my career in sales and business development, with roles at Learning Lab Research Institute, Vyapar Apps and 99acres.com, before moving into data analytics. Because of that, I understand both sides: how businesses use data to make decisions, and how a beginner feels when starting SQL from zero. I teach with real business problems, such as finding top customers, tracking monthly growth and removing duplicate records, so that concepts make sense and stay with you.
My teaching approach
Simple explanations first, then examples on sample tables
Real-life problems and interview-style questions in every topic
Honest feedback on your queries, with practice tasks to follow up
A pace that fits you, whether you're a complete beginner or preparing for an interview next week

About the lesson

Want to learn PostgreSQL and use it confidently at work or in interviews? These classes are practical, beginner-friendly and focused on real problem solving, not just theory.
What you will learn
Database basics: tables, keys, data types and constraints
Writing queries with SELECT, WHERE, ORDER BY, LIMIT and OFFSET
Aggregations with GROUP BY and HAVING
All types of JOINs, subqueries and CTEs
Window functions such as ROW_NUMBER, RANK, LAG and running totals
CASE, NULL handling, date and string functions
INSERT, UPDATE, DELETE, transactions, indexes and query optimization
How the classes work
Every topic is explained in simple language, followed by examples on sample tables
Real-life business problems, such as top customers, monthly growth and duplicate records
Interview-style questions with feedback on your answers
Practice tasks after each session, plus [mock interviews on request]
Who it is for
Beginners starting SQL from zero
Students and freshers preparing for data analyst interviews
Working professionals moving into data analytics

Rates

Rate

RM30

Pack rates

5h: RM150
10h: RM300

free lessons

This first lesson is free to allow you to get to know your teacher so that they can best meet your needs.

online

RM30/h

Beginner-Friendly SQL Classes: Learn Queries, Joins and Window Functions Step by Step with Real-Life

Lesson location

About Varun kumar

About the lesson

Rates

Rate

Pack rates

free lessons

online

Similar PostgreSQL tutors in Bengaluru

Sr. full stack developer with 2+ years of experience | hands-on web development (html, css, react.js, node.js, mongodb) for beginners to advanced.

Assist in assignments, reports, exams, in any data analysis, ai/ml, networking, cybersecurity,programing language, programming, etc related subjects

Master programming with an expert tutor – learn coding from absolute beginner to professional developer

Engineering lead | 10 years building production systems at scale | java, spring boot, aws, system design & architecture

I help students pass exams, fix assignments, and understand coding clearly. with 4+ years as a software engineer, i simplify concepts so you can learn fast and build confidence.

I am an experienced graduate student in computer science. i can give hands-on teaching in this field

Python and machine learning classes that take you from beginner to hero! suitable for all levels!

Sql & database expert: postgresql, mysql, cloud dbs and data engineering — master's cs

Python programming for statistics, data analysis, machine learning. for your university course or for self-study. i speak english and live in berlin.

Software engineering student (uchile) gives programming classes in python, java, javascript and html with an academic focus and practical applications. from calera de tango with 6+ years of exp.

Industry professional with a phd teaching all ages. make your programming journey fun, interactive, and practical.

Apprentice engineer at sorbonne utc, i help you with databases, sql and nosql. more info: iazz(.)fr

Personalized sql lessons: query writing, joins, subqueries, aggregations, views, stored procedures and much more. sql developer theory and practice. immediate availability.

M.tech in data science from iiit-b || 4 years teaching experience || guiding through r programming from scratch to advanced levels. explore posit workbench, data visualization, regression, etc

Helping students who want to learn mathematics / computer (python, data science, sql) / analytics skills. also supporting students who need help in final year thesis in data science / ai.

I teach programming / software development courses (javascript, c #, node js, angular, react js, html / css) as well as computer literacy for some.

Free programming lessons if you are unemployed due to covid-19 related circumstances

Experienced developer, offers online programming courses (php, js, sql, symfony, react, docker).

Master the art of python programming with personalized lessons from a seasoned tutor! all skill levels.

Python developer (study engineer / mysql / pysark / scraping / git / rest api) course in essonne

Beginner-Friendly SQL Classes: Learn Queries, Joins and Window Functions Step by Step with Real-Life

Lesson location

About Varun kumar

About the lesson

Rates

Rate

Pack rates

free lessons

online

Similar PostgreSQL tutors in Bengaluru

Sr. full stack developer with 2+ years of experience | hands-on web development (html, css, react.js, node.js, mongodb) for beginners to advanced.

Assist in assignments, reports, exams, in any data analysis, ai/ml, networking, cybersecurity,programing language, programming, etc related subjects

Master programming with an expert tutor – learn coding from absolute beginner to professional developer

Engineering lead | 10 years building production systems at scale | java, spring boot, aws, system design & architecture

I help students pass exams, fix assignments, and understand coding clearly. with 4+ years as a software engineer, i simplify concepts so you can learn fast and build confidence.

I am an experienced graduate student in computer science. i can give hands-on teaching in this field

Python and machine learning classes that take you from beginner to hero! suitable for all levels!

Sql & database expert: postgresql, mysql, cloud dbs and data engineering — master's cs

Python programming for statistics, data analysis, machine learning. for your university course or for self-study. i speak english and live in berlin.

Software engineering student (uchile) gives programming classes in python, java, javascript and html with an academic focus and practical applications. from calera de tango with 6+ years of exp.

Industry professional with a phd teaching all ages. make your programming journey fun, interactive, and practical.

Apprentice engineer at sorbonne utc, i help you with databases, sql and nosql. more info: iazz(.)fr

Personalized sql lessons: query writing, joins, subqueries, aggregations, views, stored procedures and much more. sql developer theory and practice. immediate availability.

M.tech in data science from iiit-b || 4 years teaching experience || guiding through r programming from scratch to advanced levels. explore posit workbench, data visualization, regression, etc

Helping students who want to learn mathematics / computer (python, data science, sql) / analytics skills. also supporting students who need help in final year thesis in data science / ai.

I teach programming / software development courses (javascript, c #, node js, angular, react js, html / css) as well as computer literacy for some.

Free programming lessons if you are unemployed due to covid-19 related circumstances

Experienced developer, offers online programming courses (php, js, sql, symfony, react, docker).

Master the art of python programming with personalized lessons from a seasoned tutor! all skill levels.

Python developer (study engineer / mysql / pysark / scraping / git / rest api) course in essonne

Share

levels

All languages in which the lesson is available

Review

Reviews

Recommendations

free lessons

Report this ad