Book Image

Apache Hive Cookbook

Book Image

Apache Hive Cookbook

Overview of this book

Hive was developed by Facebook and later open sourced in Apache community. Hive provides SQL like interface to run queries on Big Data frameworks. Hive provides SQL like syntax also called as HiveQL that includes all SQL capabilities like analytical functions which are the need of the hour in today’s Big Data world. This book provides you easy installation steps with different types of metastores supported by Hive. This book has simple and easy to learn recipes for configuring Hive clients and services. You would also learn different Hive optimizations including Partitions and Bucketing. The book also covers the source code explanation of latest Hive version. Hive Query Language is being used by other frameworks including spark. Towards the end you will cover integration of Hive with these frameworks.
Table of Contents (19 chapters)
Apache Hive Cookbook
Credits
About the Authors
About the Reviewer
www.PacktPub.com
Preface
Index

Altering the view as select


In this recipe, you will learn how to alter the view as select in Hive.

Getting ready

This command is used to change the SELECT query for the view. The general syntax for altering a view is as follows:

ALTER VIEW view_name AS select_statement;

Where:

select_statement: This is the new SELECT statement for the existing view.

How to do it…

Follow these steps to alter the view as select in Hive. The following SELECT statement is the new statement for the existing view, Hive_view:

alter view hive_view as select id, firstname from sales;