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SQL to determine minimum sequential days of access?

...y table contains one record for every day a given user has accessed a website (in a 24 hour UTC period). It has many thousands of records, but only one record per day per user. If the user has not accessed the website for that day, no record will be generated. ...
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How to make lists contain only distinct element in Python? [duplicate]

I have a list in Python, how can I make it's values unique? 10 Answers 10 ...
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How to implement an abstract class in ruby?

I know there is no concept of abstract class in ruby. But if at all it needs to be implemented, how to go about it? I tried something like... ...
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Python __str__ versus __unicode__

...seen classes override __unicode__() more frequently than __str__() but it doesn't appear to be consistent. Are there specific rules when it is better to implement one versus the other? Is it necessary/good practice to implement both? ...
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Make JQuery UI Dialog automatically grow or shrink to fit its contents

...ng certain options on the form new options will appear in the form causing it to grow taller. This can lead to a scenario where the main page has a scrollbar and the JQuery UI dialog has a scrollbar. This two-scrollbar scenario is unsightly and confusing for the user. ...
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How to force HTTPS using a web.config file

... You need URL Rewrite module, preferably v2 (I have no v1 installed, so cannot guarantee that it will work there, but it should). Here is an example of such web.config -- it will force HTTPS for ALL resources (using 301 Permanent Redirect): ...
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How to prevent a dialog from closing when a button is clicked

I have a dialog with EditText for input. When I click the "yes" button on dialog, it will validate the input and then close the dialog. However, if the input is wrong, I want to remain in the same dialog. Every time no matter what the input is, the dialog should be automatically closed when I clic...
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Is there a foreach in MATLAB? If so, how does it behave if the underlying data changes?

... FOR loop is static in nature; you cannot modify the loop variable between iterations, unlike the for(initialization;condition;increment) loop structure in other languages. This means that the following code always prints 1, 2, 3, 4, 5 regardless of the value of B. A = 1:5; for i = A A = B; ...
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Run batch file as a Windows service

... +1 Never heard of this one but it very nice. NSSM does not suck indeed! – Byron Whitlock Jan 27 '13 at 22:17 1 ...
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Interface type check with Typescript

This question is the direct analogon to Class type check with TypeScript 16 Answers 1...