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Unknown Column In Where Clause
...tcount
FROM nodes
WHERE attachmentcount > 0;
You'll get an error "Unknown column 'attachmentcount' in WHERE clause".
Solution is actually fairly simple - just replace the alias with the statement which produces the alias, eg:
SELECT nodes.*, (SELECT (COUNT(*) FROM attachments
WHERE attachme...
How to resolve “You need to have Ruby and Sass installed and in your PATH for this task to work” War
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Ok I got it. I just had to install Sass using gem install sass and now everything is fine...couldn't be easier.
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Converting a list to a set changes element order
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In Python 3.6, set() now should keep the order, but there is another solution for Python 2 and 3:
>>> x = [1, 2, 20, 6, 210]
>>> sorted(set(x), key=x.index)
[1, 2, 20, 6, 210]
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Store images in a MongoDB database
... @AbhishekMani the other solution is not to store them in MongoDB at all. Now, in 2018, it's infinitely easier to write this data to something like Amazon's S3 or Azure BLOB storage.
– Gates VP
Nov 1 '18 at 16:40
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Parse string to date with moment.js
...n reading the docs but without success
http://momentjs.com/docs/#/parsing/now/
6 Answers
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How to check if a service is running on Android?
... static variables will not work reliably because as a developer you never know, when Android decides to kill your process or which of the mentioned callbacks are called or not. Please note the "killable" column in the lifecycle events table in the Android documentation.
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How to create a string with format?
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I think this could help you:
let timeNow = time(nil)
let aStr = String(format: "%@%x", "timeNow in hex: ", timeNow)
print(aStr)
Example result:
timeNow in hex: 5cdc9c8d
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Close iOS Keyboard by touching anywhere using Swift
I have been looking all over for this but I can't seem to find it. I know how to dismiss the keyboard using Objective-C but I have no idea how to do that using Swift ? Does anyone know?
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What is the difference between a web API and a web service?
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Not "absolutely the same" if there are restrictions now are they?
– Ojonugwa Jude Ochalifu
Feb 6 '18 at 15:53
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Pushing to Git returning Error Code 403 fatal: HTTP request failed
...ange all the texts before @ symbol to ssh://git
Save config file and quit. now you could use git push origin master to sync your repo on GitHub
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