What is MapReduce in Big Data ?

MapReduce is pivotal to big data as it has allowed the processing of massive datasets, which the earlier preferred format for data storage and analysis, RBDMS was not capable of doing. In terms of big data analytics, the open-source framework of Hadoop has been a game changer. It has enabled storage of large datasets going up to petabytes in a cluster format, and faster processing of this...

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Don’t use SQL for your Big Data Pipelines

The time of coding data pipelines with high-level programming languages ETL pipelines have been made with SQL since decades, and that worked very well (at least in most cases) for many well-known reasons. In the era of Big Data, engineers and companies went crazy adopting new processing tools for writing their ETL/ELT pipelines such as Spark, Beam, Flink, etc. and started writing code instead of SQL procedures for extracting, loading...

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Basics of Hive and impla in Big data

In this lesson, you will learn the basics of Hive and Impala, which are among the two components of the Hadoop ecosystem. We will compare Hive and Impala and learn how to execute queries using them. Let’s look at the objectives of this Impala and Hive Tutorial. ‘Basics of Hive and Impala’ which is a part of ‘big data hadoop online training’ Objectives After completing this lesson, you will be...

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iOS Delegates

Here we will learn iOS delegates in swift with examples and how to use iOS delegates in swift to communicate with multiple objects using Xcode editor with example. To learn complete ios tutorials visit the following link:ios online course iOS Delegates IOS delegate is the same concept of all programming languages which means that delegate is used for communication between multiple objects. You...

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