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MySQL “NOT IN” query
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To use IN, you must have a set, use this syntax instead:
SELECT * FROM Table1 WHERE Table1.principal NOT IN (SELECT principal FROM table2)
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How would you go about parsing Markdown? [closed]
...arkdown extra) I think I would try to use a state machine and parse it one char at a time, linking together some internal structures representing bits of text as I go along then, once all is parsed, generating the output from the objects all stringed together.
Basically, I'd build a mini-DOM-like t...
Adding a newline into a string in C#
...fkdfdsfdflkdkfk@ dfsdfjk72388389@ kdkfkdfkkl@ jkdjkfjd@ jjjk@ The New line character is not effective in the text file.
– balaweblog
Oct 22 '08 at 4:08
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How to delete a file from SD card?
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File file = new File(selectedFilePath);
boolean deleted = file.delete();
where selectedFilePath is the path of the file you want to delete - for example:
/sdcard/YourCustomDirectory/ExampleFile.mp3
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Ignoring accented letters in string comparison
...lizationForm.FormD);
StringBuilder sb = new StringBuilder();
foreach (char ch in formD)
{
UnicodeCategory uc = CharUnicodeInfo.GetUnicodeCategory(ch);
if (uc != UnicodeCategory.NonSpacingMark)
{
sb.Append(ch);
}
}
return sb.ToString().Normalize(NormalizationForm.For...
autolayout - make height of view relative to half superview height
...lso need to setup bottom, left, and right constraints, like normal)
. Then select the constraint and navigate to the Attribute inspector:
Then you can adjust the multiplier. If you want it 50% of the super view leave it at 1, since it is aligned per the super's center. This is also a great way to...
Difference: std::runtime_error vs std::exception()
... not standard. The runtime_error class has a constructor taking arguments (char*) on both platforms, Windows and Linux. To be portable, better use runtime_error.
(And remember, just because a specification of your project says your code does not have to run on Linux, it does not mean it does never ...
Is it true that one should not use NSLog() on production code?
...ions to control the defining (or lack of defining) the DEBUG_MODE.
If you select "Debug" active configuration, DEBUG_MODE will be defined, and the macro expands to the full NSLog definition.
Selecting the "Release" active configuration will not define DEBUG_MODE and your NSLogging is omitted from ...
How can I combine hashes in Perl?
...y ...)
See also
PM post on merging hashes
PM Categorical Q&A hash union
Perl Cookbook 5.10. Merging Hashes
websearch://perlfaq "merge two hashes"
websearch://perl merge hash
https://metacpan.org/pod/Hash::Merge
Footnotes
1 * (aka associative-array, aka dictionary)
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How to enter quotes in a Java string?
...you didn't specify), but you should be able to "escape" the quotation mark character with a backslash: "\"ROM\""
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