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Coalesce reduces the number of partitions in a DataFrame, while repartition increases the number of partitions.
Coalesce is used to reduce the number of partitions in a DataFrame without shuffling the data
Repartition is used to increase the number of partitions in a DataFrame and can involve shuffling the data
Coalesce is more efficient than repartition when reducing partitions as it avoids shuffling
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posted on 8 Feb 2025
I appeared for an interview in Jan 2025.
posted on 22 May 2023
I applied via Company Website and was interviewed before May 2022. There were 2 interview rounds.
posted on 21 Apr 2024
I applied via Referral and was interviewed in Feb 2023. There were 3 interview rounds.
Windows function in SQL is used to perform calculations across a set of rows that are related to the current row.
Windows functions are used to calculate values based on a group of rows
They are used with the OVER clause
Examples include ROW_NUMBER(), RANK(), DENSE_RANK(), SUM(), AVG(), MIN(), MAX()
I appeared for an interview in Sep 2024.
Consultants provide expert advice, analysis, and solutions to help organizations improve performance and achieve goals.
Conduct thorough research and analysis to understand client needs and challenges.
Develop strategic plans and recommendations based on findings; for example, a marketing consultant may suggest new branding strategies.
Facilitate workshops and meetings to gather insights and foster collaboration among sta...
I have worked with various technologies including cloud computing, data analytics, and machine learning to drive business solutions.
Cloud Computing: Experience with AWS and Azure for deploying scalable applications.
Data Analytics: Utilized tools like Tableau and Power BI for data visualization and reporting.
Machine Learning: Developed predictive models using Python and libraries like scikit-learn.
Web Development: Worke...
It was given some job descriptions and asked to write boolean search for it.
I appeared for an interview in Sep 2024.
It highlights the kind of person you are through situation-based questions.
I am a dedicated professional with a background in business management and a passion for problem-solving and teamwork.
Education: Graduated with a degree in Business Administration from XYZ University.
Experience: Worked as an intern at ABC Corp, where I assisted in project management and team coordination.
Skills: Proficient in data analysis and project management tools like Excel and Trello.
Interests: Enjoy reading abou...
In my previous role, I managed projects, collaborated with teams, and improved processes to enhance efficiency and client satisfaction.
Led a team of 5 in a project that increased productivity by 20% through streamlined workflows.
Implemented a new client feedback system that improved customer satisfaction scores by 15%.
Conducted training sessions for new employees, enhancing their onboarding experience and reducing ramp...
I applied via Approached by Company and was interviewed before Dec 2023. There was 1 interview round.
I have worked in the technology, finance, and retail industries.
Technology industry - software development
Finance industry - investment banking
Retail industry - e-commerce
My preference in TA is to focus on building strong relationships with candidates and hiring managers, utilizing data-driven strategies for recruitment.
Building strong relationships with candidates and hiring managers
Utilizing data-driven strategies for recruitment
Prioritizing candidate experience throughout the recruitment process
Yes, I have experience leading teams and feel confident in my ability to handle team dynamics and challenges.
I have previous experience leading teams in my current role
I have strong communication and conflict resolution skills
I am able to delegate tasks effectively and provide support to team members
I am comfortable making decisions and taking responsibility for team outcomes
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