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Oracle Database Indexes: Myths, Tips and Tricks
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In this tutorial, OCM John Watson will - via demonstrations - debunk these myths and demonstrate best practices for indexing for performance.
Myth #1: Oracle Database does not index NULL
Myth #2: A search that includes wildcards can't use an index if the wildcard precedes the string.
Myth #3: Oracle will not use a function-based index unless the FBI is coded in the predicate.
Myth #4: Indexes always help. The more indexes the better.
Date: Aug 24, 2015