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How to check for Is not Null And Is not Empty string in SQL server?
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329
If you only want to match "" as an empty string
WHERE DATALENGTH(COLUMN) > 0
If you wan...
How to find all serial devices (ttyS, ttyUSB, ..) on Linux without opening them?
...ilesystem should contain plenty information for your quest. My system (2.6.32-40-generic #87-Ubuntu) suggests:
/sys/class/tty
Which gives you descriptions of all TTY devices known to the system. A trimmed down example:
# ll /sys/class/tty/ttyUSB*
lrwxrwxrwx 1 root root 0 2012-03-28 20:43 /sys/cl...
how do I initialize a float to its max/min value?
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edited Aug 28 '13 at 17:47
user283145
answered Apr 21 '10 at 16:11
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Can I set an opacity only to the background image of a div?
...:before pseudo-element
Another trick is to use the CSS 2.1 :before or CSS 3 ::before pseudo-elements. :before pseudo-element is supported in IE from version 8, while the ::before pseudo-element is not supported at all. This will hopefully be rectified in version 10.
HTML
<div class="myDiv">...
Git: cannot checkout branch - error: pathspec '…' did not match any file(s) known to git
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993
Try git fetch so that your local repository gets all the new info from github. It just takes the...
How can I match multiple occurrences with a regex in JavaScript similar to PHP's preg_match_all()?
...amp;geocode=&q=Frankfurt+am+Main&sll=50.106047,8.679886&sspn=0.370369,0.833588&ie=UTF8&ll=50.116616,8.680573&spn=0.35972,0.833588&z=11&iwloc=addr");
result is an object:
{
f: "q"
geocode: ""
hl: "de"
ie: "UTF8"
iwloc: "addr"
ll: "50.116616,8.680573"
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How do I install a custom font on an HTML site
...e CSS feature named @font-face.
It has only been officially approved in CSS3, but been proposed and implemented in CSS2 and has been supported in IE for quite a long time.
You declare it in the CSS like this:
@font-face { font-family: Delicious; src: url('Delicious-Roman.otf'); }
@font-face { f...
Flushing footer to bottom of the page, twitter bootstrap
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34 Answers
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SQLite - UPSERT *not* INSERT or REPLACE
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UPSERT support in SQLite! UPSERT syntax was added to SQLite with version 3.24.0!
UPSERT is a special syntax addition to INSERT that causes the INSERT to behave as an UPDATE or a no-op if the INSERT would violate a uniqueness constraint. UPSERT is not standard SQL. UPSERT in SQLite follows the syn...
Access restriction on class due to restriction on required library rt.jar?
...x.xml.soap.SOAPPart in three different jars: axis-saaj-1.4.jar, saaj-api-1.3.jar and the rt.jar
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