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How do I get SUM function in MySQL to return '0' if no values are found?
...FROM table
WHERE ...
To see it in action, please see this sql fiddle: http://www.sqlfiddle.com/#!2/d1542/3/0
More Information:
Given three tables (one with all numbers, one with all nulls, and one with a mixture):
SQL Fiddle
MySQL 5.5.32 Schema Setup:
CREATE TABLE foo
(
id INT NOT N...
How to show “if” condition on a sequence diagram?
...rams. Here is a link where you can find some nice resources on the subject
http://www.ibm.com/developerworks/rational/library/3101.html
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How to simulate a mouse click using JavaScript?
...rties you want to give it */
});
targetElement.dispatchEvent(evt);
Demo: http://jsfiddle.net/DerekL/932wyok6/
This works on all modern browsers. For old browsers including IE, MouseEvent.initMouseEvent will have to be used unfortunately though it's deprecated.
var evt = document.createEvent("Mo...
Backwards migration with Django South
...0001_initial
"zero" is a special state before any migration.
Reference: http://south.aeracode.org/docs/commands.html
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Programmatically obtain the Android API level of a device?
...
What you need: http://developer.android.com/reference/android/os/Build.VERSION_CODES.html
SDK_INT value Build.VERSION_CODES Human Version Name
1 BASE Android 1.0 (no codename)
...
How do I bind to list of checkbox values with AngularJS?
...re and toggling by name is cumbersome or requires a helper method
Demo: http://jsbin.com/ImAqUC/1/
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Mixing Angular and ASP.NET MVC/Web api?
...
In our case we setup a token in every http request (http default single place to add it) use ASP .net MVC / web api AuthorizeAttribute to check the token and permissions, you can as well inside the web api method get that token and perform more fine tuned securit...
How to hide “Showing 1 of N Entries” with the dataTables.js library
...
You can remove it with the bInfo option (http://datatables.net/usage/features#bInfo)
$('#example').dataTable({
"bInfo" : false
});
Update:
Since Datatables 1.10.* this option can be used as info, bInfo still works in current nightly build (1.10.10).
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How do I convert a hexadecimal color to rgba with the Less compiler?
...fade(@baseColor, 100%)
/* color:#d14836; */
}
Test this code online: http://lesstester.com/
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How to store standard error in a variable
Let's say I have a script like the following:
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