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SQL Server: Query fast, but slow from procedure
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Am I the only one who is baffled by this behavior?? Requiring local variables to be declared in order to prevent parameter sniffing?? Shouldn't SQL Server be smart enough to prevent this from happening in the first place? This just causes unnecessary code bl...
How do I ignore all files in a folder with a Git repository in Sourcetree?
...o track. The existence of this file itself will make git track the folder (by tracking this file). The * means ignore all files, and the !.gitignore means don't ignore the file itself
– Billy Moon
Mar 12 '12 at 10:36
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Iterator invalidation rules
...d remove_if member functions: Erases all the elements in the list referred by a list iterator i for which the following conditions hold: *i == value, pred(*i) != false. Invalidates only the iterators and references to the erased elements [26.3.10.5/15].
unique member function - Erases all but the fi...
Check Whether a User Exists
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You can also check user by id command.
id -u name gives you the id of that user.
if the user doesn't exist, you got command return value ($?)1
And as other answers pointed out: if all you want is just to check if the user exists, use if with id dire...
Shortest distance between a point and a line segment
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We're really just trying to avoid a divide by zero there.
– Grumdrig
Apr 13 '13 at 4:44
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Protecting executable from reverse engineering?
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but they can all be worked around and or figured out by code analysists given the right time frame.
If you give people a program that they are able to run, then they will also be able to reverse-engineer it given enough time. That is the nature of programs. As soon as the bin...
How to import an excel file in to a MySQL database
...as it will gives a good example for tab separated data:
FIELDS TERMINATED BY '\t' ENCLOSED BY '' ESCAPED BY '\'
Check your data. Sometimes quoting or escaping has problems, and you need to adjust your source, import command-- or it may just be easier to post-process via SQL.
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What's HTML character code 8203?
...e, the entity is entirely superfluous in this context. It must be inserted by some accident, most likely by a buggy editor trying to do smart things with whitespace or highlighting, or an enduser using a keyboard language wherein this character is natively been used, such as Arabic.
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How to suppress Java warnings for specific directories or files such as generated code
...ress particular warnings in particular elements, but any annotations I add by hand will be lost when the parser generator runs again. Is there a way to configure Eclipse to suppress warnings for a particular file or directory?
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How do I compare two strings in Perl?
...ments. ...
lt, le, ge, gt and cmp use the collation (sort) order specified by the current locale if a legacy use locale (but not use locale ':not_characters') is in effect. See perllocale. Do not mix these with Unicode, only with legacy binary encodings. The standard Unicode::Collate and Unicode::Co...