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I applied via Naukri.com and was interviewed in Nov 2024. There were 2 interview rounds.
I applied via Approached by Company and was interviewed in May 2024. There were 2 interview rounds.
I applied via Referral and was interviewed in Feb 2024. There was 1 interview round.
Supervised learning methods, unsupervised learning methods
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Use data modeling techniques, optimize data sources, and leverage Power BI features like aggregations and incremental refresh.
Utilize data modeling techniques like creating relationships, hierarchies, and calculated columns to optimize data.
Optimize data sources by using query folding, reducing unnecessary columns, and filtering data before loading into Power BI.
Leverage Power BI features like aggregations to pre-calcu...
Many to many relationships can be handled using bridge tables or DAX functions in Power BI.
Create a bridge table to connect the two tables with a many to many relationship
Use DAX functions like CROSSFILTER or USERELATIONSHIP to handle many to many relationships
Consider using bidirectional filtering to handle many to many relationships
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I applied via Referral and was interviewed in Sep 2024. There were 2 interview rounds.
Coalesce is a function used to return the first non-null value in a list of expressions.
Coalesce function is commonly used in SQL to handle null values.
It takes multiple arguments and returns the first non-null value.
Example: COALESCE(column1, column2, 'default') will return the value of column1 if not null, else column2, and if both are null, it will return 'default'.
Repartition is the process of redistributing data across partitions in a distributed system.
Repartitioning helps in balancing the workload and improving performance in distributed computing environments.
It involves moving data between partitions based on certain criteria such as key values or hash functions.
Repartitioning can be done in Spark using operations like repartition() or coalesce().
A non repeatable character is a character that appears only once in a given string.
Iterate through the string and count the frequency of each character
Identify the characters that have a frequency of 1
Return the first non repeatable character found
Sort list without using sort method
Create a custom sorting function using loops
Compare each element with every other element to determine the correct order
Swap elements based on the comparison results
posted on 2 Jan 2021
I applied via Referral and was interviewed before Jan 2020. There were 6 interview rounds.
posted on 11 Feb 2021
I applied via Recruitment Consultant and was interviewed before May 2020. There were 3 interview rounds.
posted on 11 Sep 2023
I applied via Campus Placement and was interviewed before Sep 2022. There were 3 interview rounds.
Simple math anyone can solve it
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