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ORA-30926: unable to get a stable set of rows in the source tables
...very same problem in a merge statement I developed. Make sure your update does not touch the same record more than once in the execution of the merge.
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String isNullOrEmpty in Java? [duplicate]
This surely has been asked before, but Googling doesn't find it . Is there, in any of the standard java libraries (including apache/google/...), a static isNullOrEmpty() method for Strings ?
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Are Java static calls more or less expensive than non-static calls?
...ery old JVMs (which did not do anywhere near the optimization that Hotspot does), or some remembered trivia about C++ (in which a dynamic call uses one more memory access than a static call).
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Differences between std::make_unique and std::unique_ptr with new
Does std::make_unique have any efficiency benefits like std::make_shared ?
4 Answers
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How do you remove a specific revision in the git history?
... -1 The question well defined but this answer is not so clear. The author does not say what the exact solution is.
– Aleksandr Levchuk
Apr 3 '11 at 7:26
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Is Big O(logn) log base e?
...ig O notation is typically noted as O(logn). With a lowercase 'l' in log, does this imply log base e (n) as described by the natural logarithm? Sorry for the simple question but I've always had trouble distinguishing between the different implied logarithms.
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HTML5 LocalStorage: Checking if a key exists [duplicate]
Why this does not work ?
4 Answers
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Function in JavaScript that can be called only once
... as this Drupal extension to jQuery, may have a function named once() that does something quite different.
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What is the meaning of “non temporal” memory accesses in x86
...emory source is WC (write combining) memory type [...]
[...] the processor does not read the data into the cache hierarchy, nor does it fetch the corresponding cache line from memory into the cache hierarchy.
Note that, as Peter Cordes comments, it's not useful on normal WB (write-back) memory on c...
Command line progress bar in Java
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Thanks! However this does not work with ant (tried on both linux and osx; works fine when invoking java directly). Anyone any idea?
– user495285
Feb 12 '14 at 20:12
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