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SQL Joins Vs SQL Subqueries (Performance)?
... have serious doubt on this answer, since most DBMS, definitely SQL Server 2008 and later, translate the single ID subquery (not correlated, meaning: not referencing multiple outer query columns) into a relatively fast semi-join. Also, as previously noted in another answer, the first, real join will...
How do I use extern to share variables between source files?
...my
SOQ (Stack Overflow Questions)
repository on GitHub in the
src/so-0143-3204
sub-directory.
If you're not an experienced C programmer, you could (and perhaps
should) stop reading here.
Not so good way to define global variables
With some (indeed, many) C compilers, you can get away with what's
c...
What are the use cases for selecting CHAR over VARCHAR in SQL?
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20
Another reason is page splits and fragmentation. I had a table with an IDEN PK that got 99% fragmented because of page splits on varchar ...
How to catch curl errors in PHP
... manish1706manish1706
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Android: set view style programmatically
...llBlundell
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php stdClass to array
...you should really update your PHP installation. Support for 5.1 stopped in 2006.)
Converting an array/stdClass -> stdClass
$stdClass = json_decode(json_encode($booking));
Converting an array/stdClass -> array
The manual specifies the second argument of json_decode as:
assoc
When...
HTML5 Canvas vs. SVG vs. div
... time all of the time, regardless of whether or not one is looking at it. (2013 edit: They've mostly fixed that)
Dragging on the HTML page is smoother, which is expected by the design, since the current setup is to redraw EVERYTHING every 30 milliseconds in the Canvas test. There are plenty of opti...
Calculate date/time difference in java [duplicate]
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– Sebastien Lorber
Jan 29 '16 at 10:20
1
if i want, diference for weeks, months, years?
...
Default constructor with empty brackets
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– Marc Mutz - mmutz
Aug 8 '09 at 10:20
4
How can that be interpreted as a function?
...
How to un-submodule a Git submodule?
...v for every file?
– Bowie Owens
Dec 20 '11 at 4:43
5
Basically, yes. The trick is that git does n...