Most Popular Joins

Natural and Inner Joins in Oracle 12c

You can use the NATURAL keyword to indicate that a join should be performed based on all columns that have the same name in the two tables being joined. For example, what titles in BOOK_ORDER match those already in BOOKSHELF? The natural join returned the results as if you had typed in the following: The […]

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Understanding Oracle CLUSTER Joins

If two row sources being joined are actually tables that are part of a cluster, and if the join is an equijoin between the cluster keys of the two tables, then Oracle can use a CLUSTER join. Learn more.

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