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- Дата: 11-05-2023, 18:46
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Автор: Agus Kurniawan
Издательство: PE Press
Год: 2021
Страниц: 120
Язык: английский
Формат: pdf, epub
Размер: 15.5 MB
This book provides alternative approach to get started with Big Data Query using Apache Impala. This book describes how to work with Apache Impala and to perform queries inside Apache Impala. Apache Impala is a modern, open source, distributed SQL query engine for Apache Hadoop. With Impala, we can query data, whether stored in HDFS, Apache Hive or Apache HBase – including SELECT, JOIN, and aggregate functions. You can find the official project on this link, In this book, we learn how to perform queries on Apache Impala. Apache Hue is a web tool that can be used to perform queries on Apache Impala. We can say Apache Hue like MySQL Workbench in MySQL or SQL Server Management Studio in SQL Server. We can use Apache Hue to write queries to Apache Impala easily. In this chapter, we learn how to access Apache Impala from a program. We will use Java application for a sample of client application. To access Apache Impala, we can use ODCB and JDBC drivers from Cloudera. We will JDBC 4.2 driver for Java application. Next, we create Java application project.