Answer : It does not contains default values, the normal way to handle null values by using the combine function
Hive
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Answer : The logical group of keys, subkeys, and values in the registry that has a set of supporting files containing backups of its data is called as Hive.
Answer : It stores the metadata for Hive tables,it separates in relational database
Answer : HiveServer – It allows a remote client to submit requests to Hive, using a programming languages, and results.
Answer : Data Hive is a data warehouse software project built on top of Apache Hadoop for providing query, and analysis.
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