Balakrishna Gude

Linux Real-time Interview Questions - AWK command in Unix/Linux with examples

Pyspark Interview Questions -- Pyspark SQL Date and Timestamp Functions

Spark Real-time Interview Questions - Replace Empty Value with NULL in Spark Data Frame

SQL Server Real-time Interview Questions - Custom Soring Using ORDER BY Clause and CASE in SQL

Python Real-time Dictionary Interview Questions - Handling Duplicates in List

Pyspark Real-time Interview Questions - Pyspark Joins

Python Real-time interview Questions - Python Program to get Min and Max Element in Given Array

Pyspark Real-time interview questions - Word Count Program Using Pyspark

Python Real-time Dictionary Interview Questions - Convert two lists into a dictionary

Pyspark Real-time Interview Questions - Explode nested array into rows

SQL Server Real-time Interview Questions - Find the list of Employees and their Immediate Managers

Python Real-time Dictionary Interview Questions - Merge two Python dictionaries into one

Python Real-time interview questions - Fetching Length of last word in a given String.

Python Real-time Interview Questions - Nested Lists in Python

SQL Server Real-time Interview Questions - Convert rows to columns using Pivot

Python Real-time Interview Questions - How to swap First & Last Element in a given List.

Pyspark Real-time interview Questions - Check Required column exists in a given Data Frame

Python Real-time interview Questions - Polymorphism in Python (OOPS)

SQL Server Real-time Interview Questions - Replace Special characters using REPLACE in SQL

Scala Real-time interview questions - Scala program to calculate Factorial of a given number

Pyspark Real-time interview questions - Read Multiple Excel sheets at once Using DataBricks Notebook

Python Real-time interview Questions - How to get Unique characters in a given string

Pyspark Real-time interview questions - foreach() function in Pyspark Data Frame

Apache Spark / Pyspark Optimization Techniques and Performance Tuning

SQL Server Real-time Interview Questions - How to get Nth Highest Salary using dense_rank() in SQL

Pyspark Real-time interview questions - Difference between sort() and orderBy() in Pyspark DataFrame

Spark Memory Management - Executor Memory Calculation (spark-submit)

SQL Server Interview Questions - SQL Query to find employees hired last N Months

Pyspark Real-time interview Questions - collect() over Pyspark Data Frame

Python | Reverse words in a given String.

Pyspark Real-time interview questions - Handling nested/complex Json file in Pyspark

Linux Real-time Interview Questions - Script to create empty text files with older timestamp.

Pyspark Real-time interview questions - Json Functions with Examples

Python Real-time Interview Questions - List Comprehension (Unique and Common elements in two lists)

Python Real-time interview questions - Check if a given string contains any special characters.

Pyspark Window Ranking functions - row_number(), rank (), dense_rank()

Pyspark Real-time Interview Questions - How to Replace sub string with another string in Data Frame

Python Dictionary Interview Questions

Spark and Scala Real-time interview Questions - List in Scala

Python Real-time interview Questions - Program to find Unique characters present in a given string.

Spark and Scala Real-time interview questions - String Interpolation in Scala

Linux Real-time Interview Questions - paste command with examples in Linux

Linux Real-time Interview Questions - Program to run .py script in Linux

Pyspark Interview Questions - Pyspark Date and Timestamp Functions