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Add unique constraint to combination of two columns
I have a table and, somehow, the same person got into my Person table twice. Right now, the primary key is just an autonumber but there are two other fields that exist that I want to force to be unique.
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How to hide image broken Icon using only CSS/HTML?
...e object tag since it can be used to display images just like the img tag, and doesn't display a broken link if the image doesn't exist, it works in all browsers and as far back as IE8 all by itself, you can even use default images with this method, I posted an answer with details below.
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Is Tomcat running?
...ave a diagnostics page with user load etc, you could fetch it periodically and parse it to determine if anything is going wrong.
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How to compare strings in Bash
How do I compare a variable to a string (and do something if they match)?
10 Answers
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PHP: merge two arrays while keeping keys instead of reindexing?
How can I merge two arrays (one with string => value pairs and another with int => value pairs) while keeping the string/int keys? None of them will ever overlap (because one has only strings and the other has only integers).
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java.lang.IllegalArgumentException: View not attached to window manager
I have an activity that starts AsyncTask and shows progress dialog for the duration of operation. The activity is declared NOT be recreated by rotation or keyboard slide.
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How to sort in-place using the merge sort algorithm?
...s the array xs, the two sorted sub-arrays are represented as ranges [i, m) and [j, n) respectively. The working area starts from w. Compare with the standard merge algorithm given in most textbooks, this one exchanges the contents between the sorted sub-array and the working area. As the result, the...
Java: splitting a comma-separated string but ignoring commas in quotes
...otedString'
" )* "+ // end group 1 and repeat it zero or more times
" %s* "+ // match 'otherThanQuote'
" $ "+ // match the end of the string
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How can I change IIS Express port for a site
...te runs while debugging from Visual Studio. I am using Visual Studio 2012, and I am using ASP.NET MVC 4 for my projects I want to change the port. Random port or fixed anyone will work just want to change the port.
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Swift how to sort array of custom objects by property value
lets say we have a custom class named imageFile and this class contains two properties.
18 Answers
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