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How to get next/previous record in MySQL?

Say I have records with IDs 3,4,7,9 and I want to be able to go from one to another by navigation via next/previous links. The problem is, that I don't know how to fetch record with nearest higher ID. ...
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How to check if a map contains a key in Go?

...ng here } Explanation: if statements in Go can include both a condition and an initialization statement. The example above uses both: initializes two variables - val will receive either the value of "foo" from the map or a "zero value" (in this case the empty string) and ok will receive a bool ...
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What is a Question Mark “?” and Colon “:” Operator Used for? [duplicate]

Two questions about using a question mark "?" and colon ":" operator within the parentheses of a print function: What do they do? Also, does anyone know the standard term for them or where I can find more information on their use? I've read that they are similar to an 'if' 'else' statement. ...
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How to split one string into multiple strings separated by at least one space in bash shell?

...s well. It is the best approach in my opinion. – Alexandros Dec 17 '18 at 13:19 3 @Alexandros My ...
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How do I set up NSZombieEnabled in Xcode 4?

How do I set up NSZombieEnabled and CFZombieLevel for my executable in Xcode 4? 7 Answers ...
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Is it possible to decompile a compiled .pyc file into a .py file?

... Uncompyle6 works for Python 3.x and 2.7 - recommended option as it's most recent tool, aiming to unify earlier forks and focusing on automated unit testing. The GitHub page has more details. if you use Python 3.7+, you could also try decompile3, a fork of...
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Consistency of hashCode() on a Java string

...because the algorithm has been specified... so long as you're willing to abandon compatibility with releases before the algorithm was specified, of course. share | improve this answer | ...
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What are the differences between delegates and events?

What are the differences between delegates and an events? Don't both hold references to functions that can be executed? 12 ...
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navigator.geolocation.getCurrentPosition sometimes works sometimes doesn't

... I have been having exactly the same problem, and finding almost no information online about it. Nothing at all in the books. Finally I found this sober query on stackoverflow and (ha!) it was the final impetus I needed to set up an account here. And I have a partial an...
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How to replace multiple white spaces with one white space

... This question isn't as simple as other posters have made it out to be (and as I originally believed it to be) - because the question isn't quite precise as it needs to be. There's a difference between "space" and "whitespace". If you only mean spaces, then you should use a regex of " {2,}". If ...