This document provides an introduction to Apache Hive, including: - What Apache Hive is and its key features like SQL support and rich data types - An overview of Hive's architecture and how it works within the Hadoop ecosystem - Where Hive is useful, such as for log processing, and not useful, like for online transactions - Examples of companies that use Hive - An introduction to the Hive Query Language (HQL) with examples of creating tables, loading data, queries, and more.