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How to select unique records by SQL
...ng allows you to add aggregated data, like the min(id), max(id), count(*), etc:
SELECT word, num, min(id), max(id), count(*)
FROM dupes
GROUP BY word, num
ORDER BY word, num;
/*
word|num|min|max|count|
----|---|---|---|-----|
aaa |100| 1| 9| 2|
bbb |200| 2| 5| 2|
bbb |400| 4| 8| ...
How to make an element width: 100% minus padding?
...sizing: border-box;
}
The browser prefixed versions (-webkit-box-sizing, etc.) are not needed in modern browsers.
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Difference between Math.Floor() and Math.Truncate()
...g.AwayFromZero) == -1 Math.Round(0.3, MidpointRounding.AwayFromZero)==0.0 etc..
– dtroy
May 5 '09 at 3:49
1
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Rails DB Migration - How To Drop a Table?
...op. Migration is broken after running this command. Can not CREATE, DROP...ETC. ERROR SQLite3::SQLException: no such table: accruals: DROP TABLE "sometable"
– zee
Aug 23 '17 at 14:13
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Import Error: No module named numpy
...but not in general. There seems to be a lot more to do: configuring paths, etc.
– Peter Leopold
May 21 at 20:50
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What is the purpose of double curly braces in React's JSX syntax?
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React uses JSX, In JSX any variable, state object , expression etc has to be enclosed in {}.
While giving inline styles in JSX, it has to be specified as an object so it has to be inside curly braces again. {}.
This is the reason there are two pairs of curly braces
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How can I use MS Visual Studio for Android Development?
...l even will take care of installing all of the prerequisites (Android SDK, etc.) for you.
– Joe Skeen
Dec 1 '14 at 22:46
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Best way to change the background color for an NSView
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using drawRect results in added draw time, etc. CALayer is a better solution in 10.8 and up.
– Tom Andersen
Nov 27 '15 at 17:50
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How to know that a string starts/ends with a specific string in jQuery?
...ds for case insensitive (so it will also return true for "hello", "hEllo", etc.).
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Long press on UITableView
...es to indicate the different states of the gesture (began, changed, ended, etc). So in the handler method, check the state property of the gesture recognizer to avoid doing the action at each state of the gesture. Eg: if (gestureRecognizer.state == UIGestureRecognizerStateBegan) ....
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