SQL Common Table Expressions (CTEs) are a powerful tool for writing and organizing complex SQL queries. They are used to simplify the logic and structure of complex SQL queries, making them easier to understand and maintain. In this blog post, we will take a closer look at what SQL CTEs are, how they can be …
What is PySpark? PySpark allows Python users to interface with Apache Spark and wrangle data present in clusters over multiple nodes. PySpark provides users with Dataframes which is an abstraction of its underlying RDD (Resilient Distributed Datasets). PySpark supports most Spark features such as Spark SQL, dataframe, streaming, ML Lib and Spark Core. Install PySpark …
In many ways PySpark dataframes are similar to Pandas dataframe. However, there are some key differences as well. This is not an exhaustive list of all the actions / transformation between the two dataframes. 1. Loading & Viewing Data 2. Transformations / Filtering