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Difference between EXISTS and IN in SQL?
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The exists keyword can be used in that way, but really it's intended as a way to avoid counting:
--this statement needs to check the entire table
select count(*) from [table] where ...
--this statement is true as soon as one match is found
exists ( select * from [table] ...
Android: install .apk programmatically [duplicate]
...ade this with help from
Android download binary file problems
and Install Application programmatically on Android .
5 ...
“The given path's format is not supported.”
...spaces; 'System.IO.Path' is a type not a namespace
– All Blond
Sep 8 '11 at 13:32
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@All Blond pu...
How to prevent long words from breaking my div?
...tc), you'll need overflow to make it not destroy the layout/design.
So by all means use another method (or a combination of them) but remember to add overflow too so you cover all browsers.
Edit 2 (to address your comment below):
Start off using the CSS overflow property isn't perfect but it stop...
When NOT to use yield (return) [duplicate]
...is h deep. Then there will at most points be O(h) nested iterators built. Calling "MoveNext" on the outer iterator will then make O(h) nested calls to MoveNext. Since it does this O(n) times for a tree with n items, that makes the algorithm O(hn). And since the height of a binary tree is lg n <=...
How to capture Curl output to a file?
...if an old one exists).
curl -K myconfig.txt >> output.txt
Appends all output you receive to the specified file.
Note: The -K is optional.
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PHP Array to CSV
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Thanks for edit Vyktor, my typing is awful today! I'm usually so careful.
– Martin Lyne
Oct 28 '12 at 11:08
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Efficiently test if a port is open on Linux?
... to connect by loopback. If it fails, then the port is closed or we aren't allowed access. Afterwards, close the connection.
Modify this for your use case, such as sending an email, exiting the script on failure, or starting the required service.
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Is there a better way of writing v = (v == 0 ? 1 : 0); [closed]
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@Brian: not with that magic + sign! ¯\_(ツ)_/¯
– jAndy
Aug 2 '11 at 11:33
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Using GCC to produce readable assembly?
...is nice:
-r shows symbol names on relocations (so you'd see puts in the call instruction below)
-R shows dynamic-linking relocations / symbol names (useful on shared libraries)
-C demangles C++ symbol names
-w is "wide" mode: it doesn't line-wrap the machine-code bytes
-Mintel: use GAS/binutils MA...