The selectivity of an index is defined as the fraction of rows in a table having the same value for the indexed key. A highly selective index has few rows for each index entry and an unselective inde...
The Toad is on the case. As the Toad evolves to ease challenges presented by DevOps, the November, new release of Toad for Oracle 13.2 will include a new utPLSQL unit test creation module in all Toad ...