Rahul Upadhya

SQL Problem Solving: Merging Tables with Different Columns using UNION ALL | Step-by-Step Tutorial

Customer Orders SQL Problem | Find 3 consecutive orders within 7 days

Exchanging seats of adjacent students | LEAD | LAG | SQL Problem Solving

SQL Problem Solving: Finding Longest Gym Streak | Step-by-Step Tutorial

SQL Server Management Studio Installation & Verification | Step-by-Step Guide

SQL Problem Solving: Eligibility Check for Further Interviews | DATEDIFF Function Tutorial

SQL Problem Solving: Calculating Device Uptime Duration | Step-by-Step Tutorial

SQL Problem Solving: Deriving Grandparent Using Self Join | Step-by-Step Tutorial

SQL Problem Solving: Generating Fibonacci Series with Recursive CTE | Step-by-Step Tutorial

SQL Problem Solving: Last User Location on Each Day | RANK Window Function Tutorial

SQL Problem Solving: Segregating Credit and Debit Amounts with Aggregates | Step-by-Step Tutorial

SQL Problem Solving: Finding Missing Numbers with Recursive CTE | Step-by-Step Tutorial

Getting first day, last day of the month along with formatted date | EOMONTH | FORMAT | Variables

SQL Problem Solving: Generating Numbers with Recursive CTE | Step-by-Step Tutorial

SQL Decoding Problem | Decoding the message problem

Spark Scala Tutorial: Data Transformation with Split and concat_ws Functions | Full Name Composition