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How do I find a “gap” in running counter with SQL?

...rt into artificial_range( name ) select name from artificial_range; -- you now have two rows insert into artificial_range( name ) select name from artificial_range; -- you now have four rows insert into artificial_range( name ) select name from artificial_range; -- you now have eight rows --etc. ...
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Git stash pop- needs merge, unable to refresh index

...ash because I merged a branch which apparently conflicts with my stash and now my stash is seemingly unable to be popped. 1...
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StringBuilder vs String concatenation in toString() in Java

...ion, it will be because it is not worth it. In 99% of cases, the compiler knows better which optimization is worth it, so as a rule of thumb the dev should not interfere. Of course, your situation may fall into the other 1%, but that can only be checked by (careful) benchmarking. ...
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How does the Brainfuck Hello World actually work?

...memory looks like: ...[0][0][*97*][0][0]... If you use dot (.) operator now, what BF does is print: a Because a decimal code in ASCII is 97. So for example BF program like this (97 pluses 2 dots): +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++...
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Why am I not getting a java.util.ConcurrentModificationException in this example?

... to return another element, it will see that it returned two elements, and now after one element was removed the list only contains two elements. So all is peachy and we are done with iterating. The check for concurrent modifications does not occur, as this is done in the next() method which is neve...
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Why is January month 0 in Java Calendar?

...ng what's wrong with it would take a very long time (and I'm sure I don't know half of the problems). Admittedly working with dates and times is tricky, but aaargh anyway. Do yourself a favour and use Joda Time instead, or possibly JSR-310. EDIT: As for the reasons why - as noted in other answers,...
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Automatically open Chrome developer tools when new tab/new window is opened

... UPDATE 2: See this answer . - 2019-11-05 You can also now have it auto-open Developer Tools in Pop-ups if they were open where you opened them from. For example, if you do not have Dev Tools open and you get a popup, it won't open with Dev Tools. But if you Have Dev Tools Open a...
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How to remove time portion of date in C# in DateTime object only?

... Use the Date property: var dateAndTime = DateTime.Now; var date = dateAndTime.Date; The date variable will contain the date, the time part will be 00:00:00. share | improv...
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Moving Git repository content to another repository preserving history

... OK, now it worked. I used the following command;cd repo2, > git remote rm origin > git remote add origin url-of-repo1, > git fetch r1remote > git push origin master – Mario Jul...
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Interface defining a constructor signature?

...far: public interface IDrawable { void Update(); void Draw(); } Now create an abstract class with the constructor you want to enforce. Actually, since it's now available since the time you wrote your original question, we can get a little fancy here and use generics in this situation so ...