String functions are used to execute an input string operation and return the output string. There are many built-in string functions available on almost all
Category: Apache Impala
Chaining Common Table Expressions in Impala
This article will help you to learn how to implement chaining common table expressions in Cloudera’s Impala. -~ Chaining CTEs WITH Temp1 AS (
Get the unique values from multiple CTEs – Impala
Often, some requests for reports seem simple and straightforward. But it is challenging to find a better solution to be applied. Cloudera’s Impala provides several
Split equivalent in Impala
Split function splits the data based on the delimiter provided and it is mostly used function in Apache Hive. This function is not available in Impala.
Joins in HiveQL
As we discussed earlier, HiveQL handles structured data only, much like SQL. This doesn’t mean that Hive just manages structured data, it also processes and
Creating a table and a view with the select statement.
In this article, you’ll learn how to create a view and table based on a select statement. -~ To create a viewCREATE VIEW Emp_View ASSELECT Ename,
Big Data & SQL 