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Cron job every three days

Is it possible to run a cronjob every three days? Or maybe 10 times/month. 11 Answers ...
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postgresql return 0 if returned value is null

...n WHERE listing_Type = 'AARM' AND u_kbalikepartnumbers_id = 1000307 AND ( EXTRACT( DAY FROM ( NOW() - dateEnded ) ) ) * 24 < 48 AND COALESCE( price, 0 ) > ( SELECT AVG( COALESCE( price, 0 ) )* 0.50 FROM ( SELECT *, cume_dist() ...
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How do you calculate the average of a set of circular data? [closed]

... 102 Compute unit vectors from the angles and take the angle of their average. ...
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Have a fixed position div that needs to scroll if content overflows

... The problem with using height:100% is that it will be 100% of the page instead of 100% of the window (as you would probably expect it to be). This will cause the problem that you're seeing, because the non-fixed content is long enough to include the fixed ...
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How to avoid the “divide by zero” error in SQL?

... by zero" error we have programmed it like this: Select Case when divisor=0 then null Else dividend / divisor End ,,, But here is a much nicer way of doing it: Select dividend / NULLIF(divisor, 0) ... Now the only problem is to remember the NullIf bit, if I use the "/" key. ...
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Finding local IP addresses using Python's stdlib

How can I find local IP addresses (i.e. 192.168.x.x or 10.0.x.x) in Python platform independently and using only the standard library? ...
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In Typescript, How to check if a string is Numeric

... edited Feb 13 '18 at 14:19 k0pernikus 35.4k4040 gold badges154154 silver badges266266 bronze badges answered May 3 '14 at 6:09 ...
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How can I determine whether a 2D Point is within a Polygon?

...ion, it might translate to something else. On retina screens half a point (0.5/0.5) is pixel. Still, I never noticed that macOS UIs are significantly slower than other UIs. After all 3D APIs (OpenGL or Direct3D) also works with floats and modern graphics libraries very often take advantage of GPU ac...
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Efficient way to determine number of digits in an integer

... 107 Well, the most efficient way, presuming you know the size of the integer, would be a lookup. S...
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How many double numbers are there between 0.0 and 1.0?

...e), there will therefore be 2 to the 52th power different doubles (i.e., 4503599627370496 of them). For example, that's the number of distinct doubles between 0.5 included and 1.0 excluded, and exactly that many also lie between 1.0 included and 2.0 excluded, and so forth. Counting the doubles bet...