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Oracle estimate table join cardinality - Oracle Consulting, Oracle Support and Oracle Training by BC
瀏覽：1134
日期：2025-04-30
In the absence of column histograms, Oracle CBO must be able to “guess” the result set size and he sometimes gets it wrong. This is one reason why the ORDERED hint is one of the most popular SQL tuning hints, because using the ORDERED hint allows you to ....看更多
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