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Connection pooling options with JDBC: DBCP vs C3P0
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Would really love get a troubleshoot using BoneCP as a Tomcat Datasource. The main problem I had with this was that it required BoneCP Classes in tomcat's lib dir, as well as the log4j and google classes. Doing this made the connecti...
C++: const reference, before vs after type-specifier
...const*.)
As a matter of style
Regarding which you should prefer stylistically, however, I'll dissent from a lot of the other answers and prefer const T& (and const T*):
const T& is the style used in Stroustrup's The C++ Programming Language book.
const T& is the style used in the C++...
How can I lock a file using java (if possible)
...fy that second process that the file is already opened? Does this automatically make the second process get an exception if the file is open (which solves my problem) or do I have to explicitly open it in the first process with some sort of flag or argument?
...
How to select from subquery using Laravel Query Builder?
...y there is no method to create subquery in FROM clause, so you need to manually use raw statement, then, if necessary, you will merge all the bindings:
$sub = Abc::where(..)->groupBy(..); // Eloquent Builder instance
$count = DB::table( DB::raw("({$sub->toSql()}) as sub") )
->mergeBin...
Superscript in CSS only?
...ript on why you arguably shouldn't style superscript/subscript with CSS at all;
The second point is worth emphasizing. Typically superscript/subscript is not actually a styling issue but is indicative of meaning.
Side note: It's worth mentioning this list of entities for common mathematical supe...
Getting GDB to save a list of breakpoints
...se the save breakpoints command.
save breakpoints <filename>
Save all current breakpoint definitions to a file suitable for use
in a later debugging session. To read the saved breakpoint
definitions, use the `source' command.
Use source <filename> to restore the saved breakpoin...
iOS 5 fixed positioning and virtual keyboard
...ite which has a div pinned to the bottom of the screen via position:fixed. All works fine in iOS 5 (I'm testing on an iPod Touch) until I'm on a page with a form. When I tap into an input field and the virtual keyboard appears, suddenly the fixed position of my div is lost. The div now scrolls with ...
How to semantically add heading to a list
... on how to do this properly. When I'm using an HTML list, how do I semantically include a header for the list?
8 Answers
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Change navbar color in Twitter Bootstrap
...lor: $colHighlight;
background-color: $bgHighlight; }}}
}
And finally, a little gift
I've just made a script which will allow you to generate your theme:
TWBSColor - Generate your own Bootstrap navbar
[Update]: TWBSColor now generates SCSS/SASS/Less/CSS code.
[Update]: From now, you can...
MySQL select 10 random rows from 600K rows fast
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Yes, if you have potentially big gaps in ID's then the chance of your lowest ID's being picked randomly is much lower than your high IDs. In fact the chance that the first ID after the biggest gap getting picked is actually the highest. Therefore th...