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Extremely insightful and helpful. Is there a means to find out if its can be a result of bind variable peeking ?
osborne claims: June 2, 2009 at 6:38 pm It’s very common to acquire numerous little one cursors for just one sql_id. Normally they may have a similar approach, but it is not unheard of to possess various plans. This happens often resulting from bind variable peeking. A common circumstance might be that a cursor receives invalidated by accumulating stats. The subsequent time it receives executed, a fresh cursor will get developed as well as the statement gets re-optimized. When the bind variables are different, a completely new system may result. I’m certain there are other approaches This tends to take place as well, but this just one is pretty widespread (particularly in 10g which is overactive in it’s histogram creation, and less than Energetic in the sample dimensions it employs to develop them).
For a few RPC-based mostly solutions, you could configure a certain port rather than letting RPC assign a person dynamically. You may as well restrict the number of ports that RPC dynamically assigns to a little array, whatever the company. Simply because port a hundred thirty five is useful for quite a few solutions it can be usually attacked by destructive customers. When opening port one hundred thirty five, consider proscribing the scope from the firewall rule. For more info about port one hundred thirty five, see the next references:
A GNU extension to C makes it possible for omitting the second operand, and using implicitly the 1st operand as the 2nd also:
Greg Rahn says: April 5, 2009 at 4:57 pm The main distinction between an Outline along with a SQL Profile is an Outline incorporates a full set of question execution approach directives in which a SQL Profile (produced because of the Tuning Adviser) only has changes (OPT_ESTIMATE / COLUMN_STATS / TABLE_STATS) for cardinality making it possible for the optimizer the choice to select the Procedure determined by the extra information and facts. This suggests see here now an Outline normally has exactly the same execution strategy, but a SQL Profile may well not.
The 2012 edition of Ada has released conditional expressions (utilizing if and case), as Element of an enlarged set of expressions which include quantified expressions and expression functions. The Rationale for Ada 2012[4] states motives for Ada not acquiring experienced them prior to, along with motives for now adding them, such as to support "contracts" (also new).
Illustrations for specifying a Key vital when developing a table (using Generate Desk) or by altering the present desk structure (applying Change Desk).
are Worldwide registrations of appellations of origin under WIPO's Lisbon treaty. Begin to see the Lisbon site for more particulars.
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I need to combine your database into my project, do there is a public API for immediate search access?
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Pending information do not nevertheless have an expiration date assigned, and 6ter registrations never expire, one example is.