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ROW_NUMBER() in MySQL
...gle highest col3 for each (col1, col2) pair.
That's a groupwise maximum, one of the most commonly-asked SQL questions (since it seems like it should be easy, but actually it kind of isn't).
I often plump for a null-self-join:
SELECT t0.col3
FROM table AS t0
LEFT JOIN table AS t1 ON t0.col1=t1.co...
static const vs #define
...
String constants specifically are one of those that might benefit from being #defined, at least if they can be used as "building blocks" for bigger string constants. See my reply for an example.
– AnT
Oct 28 '09 at 14:10...
Good PHP ORM Library?
...hands down the best database abstraction layer i've ever worked with. not "one of the best" - the best.
– Nir Gavish
Feb 15 '10 at 18:15
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Loaded nib but the 'view' outlet was not set
... XIB file causing problems
Click on file's owner icon on the left bar (top one, looks like a yellow outlined box)
If you don't see the right-hand sidebar, click on the third icon above "view" in your toolbar. This will show the right-hand sidebar
In the right-hand sidebar, click on the third tab--th...
What's the difference between Require.js and simply creating a element in the DOM? [closed]
...er from the truth. It definitely has a steep learning curve for you and anyone else who will come to work in that project.
– Sahat Yalkabov
Sep 30 '13 at 3:06
3
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How do I set the selected item in a comboBox to match my string using C#?
...o I set the selected item to "test1"? That is, how do I match my string to one of the comboBox items?
25 Answers
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Setting JDK in Eclipse
... the "Add" option in installed JREs window. Problem is when I checked mthe one I wanted Eclipse to use it did not get picked up as the Default workspace JRE. So when I looked in my project properties the "JRE System Library" was still there. When I deleted it and selected "Use default Workspace JR...
XmlSerializer - There was an error reflecting type
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How does one look at an "inner exception"?
– David
Dec 17 '12 at 3:47
7
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Javascript Shorthand for getElementById
...r the JavaScript document.getElementById? Or is there any way I can define one? It gets repetitive retyping that over and over .
...
How to generate a random number in C++?
...em of your test application is that you call srand once and then call rand one time and exit.
The whole point of srand function is to initialize the sequence of pseudo-random numbers with a random seed.
It means that if you pass the same value to srand in two different applications (with the same sr...