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AWS Glue-Unleashing the Power of Serverless ETL Effortlessly

ProjectPro

You can produce code, discover the data schema, and modify it. Smooth Integration with other AWS tools AWS Glue is relatively simple to integrate with data sources and targets like Amazon Kinesis , Amazon Redshift, Amazon S3, and Amazon MSK. AWS Glue automates several processes as well.

AWS 66
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Schema Evolution with Case Sensitivity Handling in Snowflake

Cloudyard

Handling Parquet Data with Schema Evolution Let’s now look at how schema evolution works with Parquet files. Parquet is a columnar storage format, often used for its efficient data storage and retrieval. We create a table Accessory_parquet and load data from the Parquet file Accessory_day1.parquet

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50 PySpark Interview Questions and Answers For 2025

ProjectPro

Spark saves data in memory (RAM), making data retrieval quicker and faster when needed. Spark is a low-latency computation platform because it offers in-memory data storage and caching. MapReduce is a high-latency framework since it is heavily reliant on disc. appName('ProjectPro').getOrCreate() count())) df2.show(truncate=False)

Hadoop 68
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A 2025 Guide to Ace the Netflix Data Engineer Interview

ProjectPro

The transformation of unstructured data into a structured format is a methodical process that involves a thorough analysis of the data to understand its formats, patterns, and potential challenges. When choosing between different data storage solutions, several key considerations come into play.

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Data News — Week 22.45

Christophe Blefari

Kovid wrote an article that tries to explain what are the ingredients of a data warehouse. A data warehouse is a piece of technology that acts on 3 ideas: the data modeling, the data storage and processing engine. Modeling is often lead by the dimensional modeling but you can also do 3NF or data vault.

BI 130
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Adopting Spark Connect

Towards Data Science

In some cases, sparkSession.sessionState.catalog can be replaced with sparkSession.catalog, but not always. impl" -> "org.apache.hadoop.fs.s3a.S3AFileSystem", "fs.s3a.aws.credentials.provider" -> "com.amazonaws.auth.DefaultAWSCredentialsProviderChain", "fs.s3a.endpoint" -> "s3.amazonaws.com",

Scala 75
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How to Crack Amazon Data Engineer Interview in 2025?

ProjectPro

So, let’s dive into the list of the interview questions below - List of the Top Amazon Data Engineer Interview Questions Explore the following key questions to gauge your knowledge and proficiency in AWS Data Engineering. Become a Job-Ready Data Engineer with Complete Project-Based Data Engineering Course !