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www.xt-r.com | ||
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oracle-randolf.blogspot.com
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| | | | | When attempting to display only the first n rows of a result set that is ordered the Oracle optimizer offers special optimizations for these... | |
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tanelpoder.com
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| | | | | What you see below is a common problem. Someone sends you (or posts to a forum) a wide execution plan, which is unreadable because of wrapped lines. For example, this one below: -------------------------------------------------------------------------------- ------------------- | Id| Operation| Name| E-Rows |OMem | 1Mem | Used-Mem | -------------------------------------------------------------------------------- ------------------- |0 | SELECT STATEMENT|||| || |1 |SORT AGGREGATE||1 || || |*2 |HASH JOIN||... | |
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leonotes.wordpress.com
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| | | | | ????????transitive closure?Wiki??????????Oracle????????... | |
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mauro-pagano.com
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| | | 12c brought several new features in the SQL performance area and the most advertised one is probablyAdaptive Query Optimization. The Adaptive Plans feature has been described in a lot of details (specially the adaptive join methods part) and most of the focus in Adaptive Statistics has been on SQL Plan Directives and Automatic Re-optimization, not... | ||