Tag: Big Data
PySpark sorts data within each partition independently : Efficient sorting
In the realm of big data processing with PySpark, managing data efficiently is crucial. sortWithinPartitions emerges as a key method…
How to perform SQL-like column transformations in PySpark : selectExpr
selectExpr, a method that simplifies and enhances data transformation. This article aims to demystify selectExpr, highlighting its advantages and demonstrating…
Duplicating the contents of a string column a specified number of times
The repeat function in PySpark is used to duplicate the contents of a string column a specified number of times….
Extracting specific parts of a string that match a given regular expression pattern using PySpark
The regexp_extract function in PySpark is used for extracting specific parts of a string that match a given regular expression…
PySpark : Replace parts of a string that match a regular expression pattern using regexp_replace
PySpark provides powerful string manipulation capabilities, a crucial aspect of which is regular expression replacement. This article delves into the…
PySpark Math Functions: A Deep Dive into cos() and cosh()
Among its numerous features, PySpark provides a comprehensive set of mathematical functions that are essential for data analysis. In this…
Data Transformation and Analysis with PySpark ASCII
In today’s data-driven world, efficient data processing is essential for businesses to gain valuable insights and make informed decisions. PySpark…
Hive Transactional Table vs. Non-Transactional Table
Before we explore the differences between transactional and non-transactional tables, let’s grasp the basic concepts of Hive tables. Hive Table…
HiveServer1 vs. HiveServer2: A Comprehensive Comparison
Before diving into the comparison, let’s briefly understand what Hive servers are and their role in the Hive ecosystem. HiveServer1…
Hive Script vs. Hive Query: Unraveling the Differences
This article aims to shed light on this topic, offering clarity and real-world examples to illustrate the contrasts. Understanding Hive…
