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SQL set values of one column equal to values of another column in the same table

... 21 UPDATE YourTable SET ColumnB=ColumnA WHERE ColumnB IS NULL AND ColumnA IS NOT NULL ...
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jQuery clone() not cloning event bindings, even with on()

... 213 I think you should use this overload of the .clone() method: $element.clone(true, true); ...
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Avoiding memory leaks with Scalaz 7 zipWithIndex/group enumeratees

...5.7307 4.9328 45.2525 4.66231 44.6595 4.66231C43.6264 4.66231 43.1481 5.28821 43.1481 6.59048V11.9512C43.1481 13.2535 43.6264 13.8962 44.6595 13.8962C45.6924 13.8962 46.1709 13.2535 46.1709 11.9512V9.17788Z\"/\u003e\u003cpath d=\"M32.492 10.1419C32.492 12.6954 34.1182 14.0484 37.0451 14.0484C39.9723...
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How to get the PATH environment-variable separator in Python?

... LightCC 3,68222 gold badges2121 silver badges4545 bronze badges answered Mar 6 '19 at 8:46 DVVDVV 7644 br...
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Run Cron job every N minutes plus offset

...edorqui 'SO stop harming'fedorqui 'SO stop harming' 212k7373 gold badges432432 silver badges485485 bronze badges ...
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jQuery select all except first

...| edited Jan 18 '15 at 11:21 answered Jan 18 '15 at 11:11 G...
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How do I skip a match when using Ctrl+D for multiple selections in Sublime Text 2?

... | edited May 21 '14 at 11:04 skywinder 20.3k1515 gold badges8787 silver badges121121 bronze badges ...
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Should I use a data.frame or a matrix?

...ry efficient: m = matrix(1:4, 2, 2) d = as.data.frame(m) object.size(m) # 216 bytes object.size(d) # 792 bytes Matrices are a necessity if you plan to do any linear algebra-type of operations. Data frames are more convenient if you frequently refer to its columns by name (via the compact $ opera...
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vs in Generics

... 218 The out keyword in generics is used to denote that the type T in the interface is covariant. ...
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Rails 3.1: Engine vs. Mountable App

... | edited Mar 18 '12 at 21:04 Zabba 58.5k4040 gold badges169169 silver badges198198 bronze badges answ...