What would you do if you were asked to identify top-ten products based on their prices? In SQL Server, using a TOP clause with a
Category: Cloudera Impala
Clearing Screen – HDFS Terminal, Hive, Impala
Sometimes we may need to clear the screen or console window of commands or any output generated from the previous task. The following commands are
Aggregate Functions in Analytic Context
The functions SUM, AVG, COUNT, MIN, and MAX are well-known aggregate functions that we use every day. They are to compute/summarize the multiple rows by
Computing Running & Cumulative Average
This article helps you understand how to calculate the running average and cumulative average on a given data set. As discussed earlier, windowing functions
Hive Analytical Functions
The below is the compiled list of aggregate, analytical & advanced functions in Apache Hive. Some of them are widely used ones which we will
Concatenate rows (group concatenation) in MySQL, Hive, SQL Server and Oracle
The CONCAT() function joins the input strings or different column values and returns as a single string. However, if we need to concatenate rows of
Big Data & SQL 