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How do I put an 'if clause' in an SQL string?

...) However, I might guess that you are looping at a higher level. To set all such values, try this: UPDATE purchaseOrder SET purchaseOrder_status = 'COMPLETED' WHERE not exists (SELECT 1 FROM itemsOrdered WHERE itemsOrdered.purchaseOrder_ID = pu...
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Overriding Binding in Guice

...er be injecting mock or fake objects by hand. On the other hand, if you really want to replace a single binding, you could use Modules.override(..): public class ProductionModule implements Module { public void configure(Binder binder) { binder.bind(InterfaceA.class).to(ConcreteA.class...
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How to use timeit module

... The way timeit works is to run setup code once and then make repeated calls to a series of statements. So, if you want to test sorting, some care is required so that one pass at an in-place sort doesn't affect the next pass with already sorted data (that, of course, would make the Timsort reall...
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String concatenation: concat() vs “+” operator

...then throwing it away when you create the final String. In practice memory allocation is surprisingly fast. Update: As Pawel Adamski notes, performance has changed in more recent HotSpot. javac still produces exactly the same code, but the bytecode compiler cheats. Simple testing entirely fails bec...
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PHP String to Float

I am not familiar with PHP at all and had a quick question. 8 Answers 8 ...
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Prevent flicker on webkit-transition of webkit-transform [duplicate]

...ing other elements on the site and I ended up by having to add the rule to all elements on the site. – mlunoe Jan 10 '13 at 13:53 ...
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CSS :not(:last-child):after selector

... If it's a problem with the not selector, you can set all of them and override the last one li:after { content: ' |'; } li:last-child:after { content: ''; } or if you can use before, no need for last-child li+li:before { content: '| '; } ...
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How to create ls in windows command prompt?

... You could: create a batch file called ls.bat and have it contain the dir command only add the directory where the ls.bat file exists to your PATH environment variable You could then execute ls from a command prompt. ...
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Stop node.js program from command line

...ram, you should be using Ctrl + C. If you do that, it sends SIGINT, which allows the program to end gracefully, unbinding from any ports it is listening on. See also: https://superuser.com/a/262948/48624 share | ...
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Push Notifications in Android Platform

... You can generally get activated very quickly, and it is being used for things like GMail so is know to work in production. Unfortunately their sample code for communicating with the server side aspect of C2DM is lacking. I've written up a...