Apache Hive is a data warehouse system built on top of Hadoop for providing data query and analysis. It provides an SQL-like interface to query data stored in various formats like text files, sequence files, and RC files. Hive translates SQL-like queries into MapReduce jobs for execution on Hadoop clusters, enabling users to process large datasets without needing to write complex Java code. It's commonly used for data summarization, querying, and analysis of large datasets stored in Hadoop Distributed File System (HDFS) or other compatible storage systems.
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