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DATA Manipulation

Where and Filter in Spark Dataframes
Spark

Where and Filter in Spark Dataframes

ByMahesh Mogal October 22, 2020February 11, 2021

In this blog, we will learn how to filter rows from spark dataframe using Where and Filter functions.

Where and Filter in Spark Dataframes

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Removing White Spaces From Data in Spark
Spark

Removing White Spaces From Data in Spark

ByMahesh Mogal October 9, 2020February 11, 2021

White spaces can be a headache if not removed before processing data. We will learn how to remove spaces from data in spark using inbuilt functions.

Removing White Spaces From Data in Spark

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Adding White Spaces to Data in Spark Dataframe
Spark

Adding White Spaces to Data in Spark Dataframe

ByMahesh Mogal October 6, 2020February 11, 2021

In this blog, we will learn how to use rpad and lpad functions to add padding to data in spark dataframe.

ADDING SPACES DATA IN SPARK DATAFRAME

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String Functions in Spark
Spark

String Functions in Spark

ByMahesh Mogal October 2, 2020March 20, 2021

This blog is intended to be a quick reference for the most commonly used string functions in Spark. It will cover all of the core string processing operations that are supported by Spark. In addition, it should serve as a useful guide for users who wish to easily integrate these into their own applications.

String Functions in Spark

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Select Expr in Spark Dataframe
Spark

Select Expr in Spark Dataframe

ByMahesh Mogal September 17, 2020February 12, 2021

In this blog, we will learn how to use select and expr in the Spark data frame. We will learn multiple use cases along with selectExpr.

Select Expr in Spark Dataframe

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Inserting Data In Hive Partitioned tables
Hive

Inserting Data In Hive Partitioned tables

ByMahesh Mogal August 27, 2020February 12, 2021

In this blog, we will learn how to insert data in partitions in hive table. We will write queries to insert data in static as well as dynamic partitions.

inserting data to hive partition

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Adding Custom Schema to Spark Dataframe
Spark

Adding Custom Schema to Spark Dataframe

ByMahesh Mogal August 12, 2020February 12, 2021

We will learn how to specify our custom schema with column names and data types for Spark data frames.

Adding Custom Schema to Spark Dataframe

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Reading data from a file in Spark
Spark

Reading data from a file in Spark

ByMahesh Mogal August 12, 2020March 25, 2021

We will learn how to load data from JSON, CSV, TSV, Pipe Delimited or any other type for delimited file to spark Dataframe.

Reading data from a file in Spark

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Hive Data Manipulation – Loading Data to Hive Tables
Hive

Hive Data Manipulation – Loading Data to Hive Tables

ByMahesh Mogal August 12, 2020February 12, 2021

We will learn how to load and populate data to hive table. We will also learn how to copy data to hive tables from local system.

Loading Data to Hive Tables

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