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jonathanlewis.wordpress.com | ||
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hourim.wordpress.com
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| | | | | The last Jonathan Lewis post on RAC Planswhich finished by the following phrases: "If you're going to hard-code hints into a query then take a look at the outline it generates when it does the right thing, and that will tell you about the 15 or so hints you've missed out. (Better still, consider generating... | |
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tonyhasler.wordpress.com
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| | | | | When a table is accessed by multiple members of a parallel query server set, the execution plan may show the use of block range granules (PX BLOCK ITERATOR) or partition granules (PX PARTITION [RANGE|LIST|HASH] ITERATOR or PX PARTITION [RANGE|LIST|HASH] ALL). The basic ideas surrounding these concepts are discussed in numerous blogs and books, including my... | |
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www.bobbydurrettdba.com
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| | | | | I've uploaded a monitoring script that I have worked on: zip. The script alerts you when the optimizer runs a SQL statement with a potentially new and inefficient plan so you can intervene. ... | |
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tonyhasler.wordpress.com
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| | | Note that there is a follow up to this post here that you should read after this post. Stored outlines were introduced in Oracle 9i as a way of helping stabilise execution plans. In 11gR1 these are deprecated in favour of enterprise-edition-only SQL Baselines (sorry standard edition users )-:) but as of 11gR2 neither facility... | ||
