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jonathanlewis.wordpress.com | ||
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dioncho.wordpress.com
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| | | | | One of my colleagues sent following test case, of which he couldn't control the join order with hints. 1. Create objects - table t1, t2 and t3 2. Now Let's set the join order as T1->T2->T3, using global hints convention. But it seems that Oracle does not work as expected. It really seems that the... | |
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rwijk.blogspot.com
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leonotes.wordpress.com
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| | | | | ????????transitive closure?Wiki??????????Oracle????????... | |
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jonathanlewis.wordpress.com
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| | | Here's a simple detail about bind peeking (during optimisation) that makes a big difference to "fetch first/next" queries. The optimizer knows about your bind types, and can peek at the bind values - but that doesn't mean it will do something sensible with them. Here's a little model to demonstrate the problem - starting with... | ||
