Oracle Indexes: Myths, Tips and Tricks – Free Tutorial
Duration: 9 minutes
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.
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