大约有 45,000 项符合查询结果(耗时:0.0337秒) [XML]

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conditional unique constraint

...onstraint like this. The difference is, you'll return false if Status = 1 and Count > 0. http://msdn.microsoft.com/en-us/library/ms188258.aspx CREATE TABLE CheckConstraint ( Id TINYINT, Name VARCHAR(50), RecordStatus TINYINT ) GO CREATE FUNCTION CheckActiveCount( @Id INT ) RETURNS INT...
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Programmer-friendly search engine? [closed]

...gle is unfriendly to searching for verbatim strings with characters like $ and #. Is there a search engine that supports searching for verbatim strings? ...
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How do I convert from int to Long in Java?

I keep finding both on here and Google people having troubles going from long to int and not the other way around. Yet I'm sure I'm not the only one that has run into this scenario before going from int to Long . ...
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Check if a given key already exists in a dictionary and increment it

...ording to his example, it should be enough to set "defaultdict(lambda: 0)" and skip the entire "if" clause. – Deestan Jan 23 '09 at 14:57 ...
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Is it possible to dynamically compile and execute C# code fragments?

...s possible to save C# code fragments to a text file (or any input stream), and then execute those dynamically? Assuming what is provided to me would compile fine within any Main() block, is it possible to compile and/or execute this code? I would prefer to compile it for performance reasons. ...
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How can I create a temp file with a specific extension with .NET?

...ent to the odds of creating a few tens of trillions of UUIDs in a year and having one duplicate. In other words, only after generating 1 billion UUIDs every second for the next 100 years, the probability of creating just one duplicate would be about 50%. The probability of one duplic...
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Launch an app on OS X with command line

I want to launch an app on OSX from a script. I need pass it command line arguments. Unfortunately, open doesn't accept command line args. ...
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Is it bad practice to return from within a try catch finally block?

...t a bad practice. Putting return where it makes sense improves readability and maintainability and makes your code simpler to understand. You shouldn't care as finally block will get executed if a return statement is encountered. ...
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Do any JVM's JIT compilers generate code that uses vectorized floating point instructions?

... System.out.println("dotc(): " + (t3 - t2)/10000000 + " ns"); } } and Dot.h: float ac[50], bc[50]; inline float dotc() { float sum = 0; for (int i = 0; i < 50; i++) { sum += ac[i]*bc[i]; } return sum; } We can compile and run that with JavaCPP using this comma...
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How do I unbind “hover” in jQuery?

...'mouseenter mouseleave'); As of jQuery 1.7, you are also able use $.on() and $.off() for event binding, so to unbind the hover event, you would use the simpler and tidier: $('#myElement').off('hover'); The pseudo-event-name "hover" is used as a shorthand for "mouseenter mouseleave" but was hand...