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What is the error “Every derived table must have its own alias” in MySQL?
I am running this query on MySQL
4 Answers
4
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Proper way to wait for one function to finish before continuing?
...ago, and really want to update it. While callbacks are absolutely fine, in my experience they tend to result in code that is more difficult to read and maintain. There are situations where I still use them though, such as to pass in progress events and the like as parameters. This update is just to ...
How do you remove a Cookie in a Java Servlet
... I tried setMaxAge(0) initially in firefox but I still saw it listed in my cookies as "Expires: at end of session" and thought my servlet was still receiving that expired cookie. It might've been a combo of needing to set the response.setContentType("text/html"); and setMaxAge(0); that made ...
How can I create a UILabel with strikethrough text?
...teString.length))
return attributeString
}
}
Call like this
myLabel.attributedText = "my string".strikeThrough()
UILabel extension for strikethrough Enable/Disable.
extension UILabel {
func strikeThrough(_ isStrikeThrough:Bool) {
if isStrikeThrough {
if let lblText = s...
setNeedsLayout vs. setNeedsUpdateConstraints and layoutIfNeeded vs updateConstraintsIfNeeded
...alls updateConstraintsIfNeeded, so calling it manually is rarely needed in my experience. In fact, I have never called it except when debugging layouts.
Updating constraints using setNeedsUpdateConstraints is pretty rare too, objc.io–a must read about autolayouts–says:
If something changes ...
How to remove line breaks (no characters!) from the string?
... - I have searched both SO as well as the rest of the web for an answer to my problem and ended up finding the same insufficient "solutions" over and over. Anyhow, here it goes:
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PHP - Check if two arrays are equal
...gt; 'a']. That's why they don't have the same key/value pairs as stated in my answer and that's why == does not work between those.
– Stefan Gehrig
Nov 15 '15 at 13:00
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How to reload the current state?
... @MK Thank you for that note. It steered me towards the solution of my own, different problem. I've spent hours trying to find out why my requests were getting doubled, then tripled etc. and it was all because of an interceptor (github.com/witoldsz/angular-http-auth).
– ...
How to empty a Heroku database
... app} substitute the name of your app. For example, if your app is called my_great_app then you use:
heroku pg:reset DATABASE_URL --confirm my_great_app
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Undo git update-index --skip-worktree
...t need to remember it. I use alias hidden="git ls-files -v | grep '^S'" in my .bash_profile. It works great!
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