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Archive of entries posted on 11th November 2009

Optimizer Index Access Paths: Why Oracle is not using my Index?

Access paths are ways in which data is retrieved from the database. In general, index access paths should be used for statements that retrieve a small subset of table rows, while full scans are more efficient when accessing a large portion of the table. Online transaction processing (OLTP) applications, which consist of short-running SQL statements [...]