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MySQL IF NOT NULL, then display 1, else display 0
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Instead of COALESCE(a.addressid,0) AS addressexists, use CASE:
CASE WHEN a.addressid IS NOT NULL
THEN 1
ELSE 0
END AS addressexists
or the simpler:
(a.addressid IS NOT NULL) AS addressexists
This works because TRUE is displayed as 1 ...
jQuery clone() not cloning event bindings, even with on()
... answered Mar 3 '12 at 20:43
Didier GhysDidier Ghys
28.9k99 gold badges6767 silver badges7676 bronze badges
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Adjusting Eclipse console size
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Also, includes the console width setting.
– Zack
Aug 4 '16 at 2:25
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How do I disconnect all other users in tmux?
...from <prefix>:followed by detach [options] or on the command line inside tmux with tmux detach [options]
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Python Flask, how to set content type
I am using Flask and I return an XML file from a get request. How do I set the content type to xml ?
7 Answers
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Raise warning in Python without interrupting program
...ring>:1: MyCustomWarning: This is my custom warning.
For testing, consider assertWarns or assertWarnsRegex.
As an alternative, especially for standalone applications, consider the logging module. It can log messages having a level of debug, info, warning, error, etc. Log messages having a le...
Is there auto type inferring in Java?
...: var is not a keyword! From the JLS: "var is not a keyword, but rather an identifier with special meaning as the type of a local variable declaration". Thus, unlike keywords, there is nothing to stop you calling a variable or a method "var".
– Klitos Kyriacou
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Variable interpolation in the shell
...ap.sh
or
${filepath}_newstap.sh
or
$filepath\_newstap.sh
_ is a valid character in identifiers. Dot is not, so the shell tried to interpolate $filepath_newstap.
You can use set -u to make the shell exit with an error when you reference an undefined variable.
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View not attached to window manager crash
...sk Dismiss the progress dialog
protected void onPostExecute(String file_url) {
if (YourActivity.this.isDestroyed()) { // or call isFinishing() if min sdk version < 17
return;
}
dismissProgressDialog();
something(note);
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How do you exit from a void function in C++?
...ou prematurely exit from a function without returning a value if it is a void function? I have a void method that needs to not execute its code if a certain condition is true. I really don't want to have to change the method to actually return a value.
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