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Happiest Minds Technologies
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I applied via Recruitment Consulltant and was interviewed in Apr 2023. There were 4 interview rounds.
I have experience working on projects involving data pipeline development, ETL processes, and data warehousing.
Developed ETL processes to extract, transform, and load data from various sources into a data warehouse
Built data pipelines to automate the flow of data between systems and ensure data quality and consistency
Optimized database performance and implemented data modeling best practices
Worked on real-time data pro...
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I applied via Naukri.com and was interviewed in Oct 2024. There were 2 interview rounds.
posted on 16 Nov 2024
I applied via Referral and was interviewed in Nov 2024. There was 1 interview round.
I applied via Naukri.com and was interviewed in Oct 2024. There was 1 interview round.
Incremental load in pyspark refers to loading only new or updated data into a dataset without reloading the entire dataset.
Use the 'delta' function in pyspark to perform incremental loads by specifying the 'mergeSchema' option.
Utilize the 'partitionBy' function to optimize incremental loads by partitioning the data based on specific columns.
Implement a logic to identify new or updated records based on timestamps or uni...
I applied via Referral and was interviewed in Feb 2024. There was 1 interview round.
Just focus on the basics of pyspark.
posted on 9 May 2022
I applied via Approached by Company and was interviewed in Nov 2021. There was 1 interview round.
Normalization is a process of organizing data in a database to reduce redundancy and improve data integrity.
Normalization involves breaking down a table into smaller tables and defining relationships between them.
It helps in reducing data redundancy and inconsistencies.
Views are virtual tables that are created based on the result of a query. They can be used to simplify complex queries.
Stored procedures are precompiled...
I applied via Naukri.com and was interviewed in Sep 2024. There was 1 interview round.
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Senior Software Engineer
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Module Lead
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Software Engineer
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