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SQL select only rows with max value on a column [duplicate]
...ie (sometimes useful)
It doesn't require a join
APPROACH
It is a little bit ugly and requires that you know something about the range of valid values of the rev column. Let us assume that we know the rev column is a number between 0.00 and 999 including decimals but that there will only ever be ...
Set initial focus in an Android application
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answered Apr 30 '10 at 10:33
MatthiasMatthias
40.8k2828 gold badges9898 silver badges127127 bronze badges
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What's the best practice for primary keys in tables?
When designing tables, I've developed a habit of having one column that is unique and that I make the primary key. This is achieved in three ways depending on requirements:
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How to sort an array of objects by multiple fields?
... (as it stores a function for each sorting option, but it should preform a bit better as it does not have to determine the correct settings during the comparison. I have not done any profiling though.
var sort_by;
(function() {
// utility functions
var default_cmp = function(a, b) {
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How to upload a project to Github
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After a bit of research i figured it out. If i use git pull origin master before push it works perfectly....thanks :)
– jampez77
Oct 9 '12 at 13:39
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Why is Lisp used for AI? [closed]
...u to reason about the problem you are solving, rather than about shuffling bits.
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Why aren't Java Collections remove methods generic?
... Why add() can take a typed parameter but remove() can't is still a bit beyond my comprehension. Josh Bloch would be the definitive reference for Collections questions. It might be all I get without trying to make a similar collection implementation and see for myself. :( Thanks.
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Why does HTML think “chucknorris” is a color?
...al sections, indicating Red, Green and Blue values: c00c 0000 0000. Extra bits in each section will be ignored, which makes the final result #c00000 which is a reddish color.
Note, this does not apply to CSS color parsing, which follow the CSS standard.
<p><font color='chucknorris'>...
'setInterval' vs 'setTimeout' [duplicate]
...f the timeout between them.
Example:
var intervalID = setInterval(alert, 1000); // Will alert every second.
// clearInterval(intervalID); // Will clear the timer.
setTimeout(alert, 1000); // Will alert once, after a second.
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Creating threads - Task.Factory.StartNew vs new Thread()
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@sming Sorry, that sentence was a little bit too coarse. Synchronous execution of tasks is called inlining. When scheduling a task on the threadpool (default scheduler) from the UI Thread it will not occur. It will only occur if the ambient scheduler ('TaskScheduler...