Introduction

Hive, an Apache Hadoop ecosystem component is developed by Facebook to query the data stored in Hadoop Distributed File System (HDFS). Here, HDFS is the data storage layer of Hadoop that at very high level divides the data into small blocks (default 128 MB) and stores these blocks on different nodes.

Hive provides a SQL-like query model named Hive Query Language (HQL) to access and analyze big data. It is also termed Data Warehousing framework of Hadoop and provides various analytical features, such as windowing and partitioning.