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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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How to detect when cancel is clicked on file input?

...dn't get it to fire at all using document.body.addEventListener.. I don't know why. Instead I got the same result with window.addEventListener. – WoodenKitty Aug 13 '16 at 2:21 3 ...
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Can't compile project when I'm using Lombok under IntelliJ IDEA

...nally, rename lombok to Project Lombok 1.18.8. Click OK. The project can now import from the lombok package and use Project Lombok annotations (e.g., lombok.Setter and lombok.Getter). share | impr...
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What is an existential type?

...X they're saying: You can plug in whatever type you want, I don't need to know anything about the type to do my job, I'll only refer to it opaquely as X. When someone defines an existential type ∃X they're saying: I'll use whatever type I want here; you wont know anything about the type, so you c...
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What does the function then() mean in JavaScript?

...call takes a callback function that is executed when the server responds. Now of course the more levels of nesting we have, the harder the code is to read, debug, maintain, upgrade, and basically work with. This is generally known as callback hell. Also, if we needed to handle errors, we need to po...
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Surrogate vs. natural/business keys [closed]

... Now, after reading a lot about surrogate keys and natural keys, I think using surrogate keys is better. But, on my database, natural keys (a NVARCHAR(20)) must be unique. I don't understand how I can get more speed if I need ...
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How to use UIScrollView in Storyboard

...ould like to be able to lay it out for easy design on the storyboard. I know it can be done programmatically but I really want to be able to see it visually. Every time I put a scroll view on a view controller it won't scroll. Is it possible to get it to work like I want or do I have to do it in t...
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How big can a user agent string get?

... I'm less concerned with server limits since I am on IIS, I know it won't ever be bigger then their limit which is still preety large if memory serves.... – JoshBerke Mar 17 '09 at 18:42 ...
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Vim: insert the same characters across multiple lines

... Nice, didn't know about "A" and "C" options too. – hobbes3 May 24 '18 at 1:11 ...
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How to programmatically send SMS on the iPhone?

Does anybody know if it's possible, and how, to programmatically send a SMS from the iPhone , with the official SDK / Cocoa Touch? ...