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Good way to use table alias in Update statement?

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Will writeToFile:atomically: overwrite data?

Really simple question but it doesn't seem to be clear in Apple's docs. 2 Answers 2 ...
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Rounding BigDecimal to *always* have two decimal places

I'm trying to round BigDecimal values up, to two decimal places. 1 Answer 1 ...
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How do I calculate the normal vector of a line segment?

Suppose I have a line segment going from (x1,y1) to (x2,y2). How do I calculate the normal vector perpendicular to the line? ...
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How can I add items to an empty set in python

I have the following procedure: 3 Answers 3 ...
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XPath to select element based on childs child value

Trying to select an element based on the value of one of it's childrens childrens 1 Answer ...
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Linq with group by having count

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What's the difference between equal?, eql?, ===, and ==?

...nd the difference between these four methods. I know by default that == calls the method equal? which returns true when both operands refer to exactly the same object. ...
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PHP foreach loop key value

I am running this DB call to get me multi-dimensional array I am trying to get the keys of each but when I try it comes up blank or as array. ...
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What is Clojure useful for? [closed]

...ing around with OpenGL Writing async webservers HTML Templating Running parallel tasks (fetching multiple URLs and process in parallel) Playing around with real time audio Simulations That's the practical / fun stuff. But Clojure has plenty of theoretical depth as well. Ideas that will become inc...