PySpark SQL Types (DataType) with Examples

PySpark SQL Types class is a base class of all data types in PuSpark which defined in a package pyspark.sql.types.DataType and they are used to create DataFrame with a specific type. In this article, you will learn different Data Types and their utility methods with Python examples. 1. DataType -…

Continue Reading PySpark SQL Types (DataType) with Examples

PySpark StructType & StructField Explained with Examples

PySpark StructType & StructField classes are used to programmatically specify the schema to the DataFrame and creating complex columns like nested struct, array and map columns. StructType is a collection of StructField's that defines column name, column data type, boolean to specify if the field can be nullable or not…

Continue Reading PySpark StructType & StructField Explained with Examples

Spark SQL Data Types with Examples

Spark SQL DataType class is a base class of all data types in Spark which defined in a package org.apache.spark.sql.types.DataType and they are primarily used while working on DataFrames, In this article, you will learn different Data Types and their utility methods with Scala examples. 1. Spark SQL DataType -…

Continue Reading Spark SQL Data Types with Examples

Spark Schema – Explained with Examples

Spark Schema defines the structure of the DataFrame which you can get by calling printSchema() method on the DataFrame object. Spark SQL provides StructType & StructField classes to programmatically specify the schema. By default, Spark infers the schema from the data, however, sometimes we may need to define our own…

Continue Reading Spark Schema – Explained with Examples

Spark SQL StructType & StructField with examples

Spark SQL StructType & StructField classes are used to programmatically specify the schema to the DataFrame and creating complex columns like nested struct, array and map columns. StructType is a collection of StructField's. Using StructField we can define column name, column data type, nullable column (boolean to specify if the…

Continue Reading Spark SQL StructType & StructField with examples