In this post we will address Spark SQL Functions, i.e., built-in functions, its syntax and what it does. The comprehensive list of Spark functions provided in the Apache Spark API documentation can be a bit difficult to navigate. In this post we breakdown the Apache Spark built-in functions by Category: Operators, String functions, Number functions, Date functions, Array functions, Conversion functions and Regex functions.
In this post we will address Spark SQL Date Functions, its syntax and what it does. There are 28 Spark SQL Date functions, meant to address string to date, date to timestamp, timestamp to date, date additions, subtractions and current date conversions.
This post focuses on answering some of the frequently asked Sqoop interview questions. Apache Sqoop is a relatively small tool in the Apache Hadoop ecosystem, so most technical interviews do not contain any more than a question or two on Sqoop. The list of interview questions provided below are a consolidation of our top 9 FAQ.