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How do I schedule jobs in Jenkins?
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529
By setting the schedule period to 15 13 * * * you tell Jenkins to schedule the build every day...
ERROR: Error installing capybara-webkit:
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answered Jul 23 '12 at 23:50
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Email Address Validation in Android on EditText [duplicate]
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675
Java:
public static boolean isValidEmail(CharSequence target) {
return (!TextUtils.isEmpty...
How can I brew link a specific version?
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5 Answers
5
Active
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How do I get SUM function in MySQL to return '0' if no values are found?
...e 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 NULL AUTO_INCREMENT PRIMARY KEY,...
Generate array of all letters and digits
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145
[*('a'..'z'), *('0'..'9')] # doesn't work in Ruby 1.8
or
('a'..'z').to_a + ('0'..'9').to_a # ...
how does array[100] = {0} set the entire array to 0?
... aggregates).
The behavior of this code in C++ is described in section 8.5.1.7 of the C++ specification (online draft of C++ spec): the compiler aggregate-initializes the elements that don't have a specified value.
Also, note that in C++ (but not C), you can use an empty initializer list, causing...
Specifying rails version to use when creating a new application
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504
I found here an undocumented option to create a new application using an older version of Rail...