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jonathanlewis.wordpress.com | ||
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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... | |
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kerryosborne.oracle-guy.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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tanelpoder.com
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| | | Update: As this original article is from 2007, there are better options available in the modern times for example DBMS_UTILITY.EXPAND_SQL_TEXT as explained by Maria Colgans blog entry here. If you have been involved in tuning SQL code which you have never seen before, you are probably familiar with the challenges of understanding what the code is trying to do. This can be especially time consuming when the SQL references lots of views, which reference views, which reference more views etc. So there may ... | ||
