BLOG|AUTHOR: CHRIS REYES

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SQL Execution Plans
SQL Execution Plans

SQL Execution Plans

Q: Is there a way to understand why indexes aren't being used, even if they are referenced in the WHERE? A: Not really. For example, suppose WHERE GENDER = 'M' and I know there is an index in the col...

Using SQL Optimizer with Exadata
Using SQL Optimizer with Exadata

Using SQL Optimizer with Exadata

Q: I assume that the indexing in Exadata is not as important due to cell storage. Generally speaking, “full table scans” are not to be avoided as with non-Exadata databases. Exadata has numerous mecha...