Using CONCAT and string manipulation functions: SELECT CONCAT(‘{ “column1”: “‘, column1, ‘”, “column2”: “‘, column2, ‘”, “column3”: “‘, column3, ‘” }’) AS json_data FROM your_table; Using a custom UDF (User-Defined Function): If the built-in...
Scala: Scala is a statically typed language, which means you need to declare the data type of the variables before using them. Scala provides functional programming constructs along with object-oriented programming concepts. Scala runs...
Top Apache Spark Interview Questions and Answers/ Top Data Engineer Interview Questions and Answers WAQ to find 2nd highest salary using window functions WAQ to find employees having salary higher than their manager Partitioning...
Here are some examples of transformations in PySpark: Map map(func) – Applies the given function to each element of the dataset and returns a new dataset with the results. For example: from pyspark.sql.functions import...
Steps for configuring eclipse for python 3+ if you have not installed python, please install the python using the link Step:- 1 launch the eclipse Eclipse Welcome Page Step:2 Click on the...
The first and very simple program in any programming language is the “Hello World” program. Hello World program is the first step for learning any programming language. This post will teach you the Hello...
How to Install Python on Windows: Step 1: Download Python (for version 3 & above) Open a browser and Goto the link Click on the Download Python <x.y.z> button. The below file will be...