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How do you use variables in a simple PostgreSQL script?

... This doesn't answer the question at all. In MS SQL you can define a var in a query and use it right there, in the same tool. I don't get why people keep proposing this as an answer, in every version of this question. – stone ...
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windows service vs scheduled task

...ust need to figure out how to support failover... Original Answer: I'm really not a fan of Windows Scheduler. The user's password must be provided as @moodforall points out above, which is fun when someone changes that user's password. The other major annoyance with Windows Scheduler is that it r...
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how to read value from string.xml in android?

... Try this String mess = getResources().getString(R.string.mess_1); UPDATE String string = getString(R.string.hello); You can use either getString(int) or getText(int) to retrieve a string. getText(int) will retain any rich text styling applied to the string. Reference: https://dev...
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Debug Error \"pure virtual function call\" 原因解析 - 更多技术 - 清泛...

... public: virtual void virtualFunc(){} }; Base* pB = new Derived; __try { delete pB; // . . . b) pB = NULL; } __except(EXCEPTION_EXECUTE_HANDLER){ } pB->virtualFunc(); // . . . c) 在b)处析构Derived对象的时候,在其基类析构函数中a)处抛出了...
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How can I create a table with borders in Android?

...cell. In this manner you could define a shape with the border you want for all cells. The only inconvenience is that the borders of the extreme cells have half the width of the others but it's no problem if your table fills the entire screen. An Example: drawable/cell_shape.xml <?xml version="...
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Why does viewWillAppear not get called when an app comes back from the background?

... In other words, if someone looks at another application or takes a phone call, then switches back to your app which was earlier on backgrounded, your UIViewController which was already visible when you left your app 'doesn't care' so to speak -- as far as it is concerned, it's never disappeared and...
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Mocking Extension Methods with Moq

... DoWorkMethod { [ExcludeFromCodeCoverage] get { return _DoWorkMethod ?? (_DoWorkMethod = (obj, val) => { return obj.DoWork(val); }); } set { _DoWorkMethod = value; } } private Func<IMyObject, string, object> _DoWorkMethod; Then you call the Func instead of ...
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“From View Controller” disappears using UIViewControllerContextTransitioning

... goes black. The key UIWindow is completely empty – no view hierarchy at all! I played around a bit and it looks like there is an easy workaround, for simple cases. You can just re-add the toViewController's view as a subview of the key window's: transitionContext.completeTransition(true) UIAp...
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Getting LaTeX into R Plots

...t interferes with the ggplot ~ # tikzDecice combo colnames(AR) <- c("$V_{BB}[V]$", "$V_{RB}[V]$" , "$V_{RC}[V]$" , "$I_B[\\mu A]$" , "IC" , "$V_{BE}[V]$" , "$V_{CE}[V]$" , "beta" , "$I_E[mA]$") # make sure the working directory is where you want your tikz file to go setwd("~/TexImageFolder/") ...
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catch exception that is thrown in different thread

...n an exception is thrown. I need to get that exception information on the calling method ( Method1 ) 4 Answers ...