Overview of basic Hive Queries

#1

Let us get an overview of Basic Hive Queries.

  • Let us make sure _retail database is created.
  • Make sure orders and order_items tables are added in the database.
  • SQL Clauses
    • SELECT - Project fields or derived fields
    • FROM - Specify Tables
    • JOIN - Join multiple data sets. It can also be OUTER
    • WHERE - To filter data
    • GROUP BY [HAVING] - For group operations such as aggregation
    • ORDER BY - To sort the data

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