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blog.tanelpoder.com | ||
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jonathanlewis.wordpress.com
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| | | | | In an earlier articleI described how dbms_xplan.display_cursor() could be used to query memory to find the execution plans (and row source statistics) of recently executed SQL. In 9i, you have to use your own SQL to get the equivalent results. If you do, you should avoid using the "traditional" hierarchical type of query that you... | |
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tanelpoder.com
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| | | | | On Exadata (or when setting cell_offload_plan_display = always on non-Exadata) you may see the storage() predicate in addition to the usual access() and filter() predicates in an execution plan: SQL> SELECT * FROM dual WHERE dummy = 'X'; D - X Check the plan: SQL> @x Display execution plan for last statement for this session from library cache... PLAN_TABLE_OUTPUT ------------------------------------------------------------------------------------------------------------------------ SQL_ID dtjs9v7q7zj1g, child number 0 ------------------------------------- SELECT * FROM dual WHERE dummy = 'X' Plan hash value: 272002086 ------------------------------------------------------------------------ | Id | Operation | Name | E-Rows |E-Bytes| Cost (%CPU)| ------------... | |
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jhdba.wordpress.com
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| | | | | STOP PRESS - 17 Nov 2009 - updated with latest code which works against both 10g and 11g databases I am attaching scripts which I wrote a while ago to automatically pick any sql_ids reported in the latest ADDMand then run sql_advisor toreport on any tuning advice. I am not suggesting that the information they... | |
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afatkulin.blogspot.com
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| | | In my previous blog post I've explained a nice little feature introduced to Oracle Text Context indexes in 11G which allows you to do effic... | ||
