Answer / Braj Bhan Singh

Complex data types in Hive include Array, Map, and Struct. Arrays allow for storing multiple values of the same data type, Maps store key-value pairs, and Structs group related columns together.

Can we run unix shell commands from hive? Can hive queries be executed from script files? How? Give an example.

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Explain how can you change a column data type in Hive?

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Clarify how hive de-serialize and serialize the information?

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I want to see the present working directory in UNIX from hive. Is it possible to run this command from hive?

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Is it possible to overwrite Hadoop MapReduce configuration in Hive?

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What is the maximum size of string data type supported by hive? Mention the hive support binary formats.

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How Hive organize the data?

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List down the segments of a hive question processor?

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When we are using queries instead of scripting?

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What is the difference between Hiveserver1 and Hiveserver2?

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What is the difference between piglatin and hiveql?

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Mention Hive default read and write classes?

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