This document provides an introduction and overview of Hive, including: - Hive is a data warehouse infrastructure tool that processes structured data stored in Hadoop using SQL-like queries. It allows for easy querying and analysis of big data. - Hive was initially developed by Facebook and is now an Apache open source project. It stores schemas in a database and processes data stored in HDFS. - Key features of Hive include using SQL-like queries (HiveQL), storing data in HDFS for scalability, and providing a familiar interface for analyzing large datasets.