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Scala String is a sequence of characters. It is immutable object which means it cannot be changed once created. In this blog we will look at all the String Functions that is available in Scala. As there are many string functions I will be covering them over a period of time, so initially the list […]
In Previous chapter we learned about Spark Dataframe Actions and today lets check out How to replace null values in Spark Dataframe. It is really important to handle null values in dataframe if we want to avoid null pointer exception. For this Spark Dataframe API has a DataFrameNaFunctions class with fill( ) function. In this post we will […]
In Previous chapter we learned about HIVE SHOW PARTITION and today lets check out the difference between Hive Insert Into vs Insert Overwrite. We will also discuss the impact on both Hive Partitioned and Non-Partitioned tables in the blog below. Simply put Insert Into command appends the rows in the existing table whereas Insert Overwrite as […]
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