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Setting up foreign keys in phpMyAdmin?
..._id, in your case). Then, go to relation view (in the referring table) and select the referred column (so in your case foo.id) and the on update and on delete actions.
I think foreign keys are useful if you have multiple tables linked to one another, in particular, your delete scripts will become v...
No Main() in WPF?
... in visual studio. Use the navigation bar > Method drop down list > select Main (greyed out). This takes you to App.g.i.cs.
– P.Brian.Mackey
Apr 6 '18 at 15:58
add a c...
How do I create ColorStateList programmatically?
... try any of those solutions, pay attention to the order the states like in selector.xml!
– Anton Makov
Oct 4 '19 at 12:34
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How to change the output color of echo in Linux
...use different numbers, not given here.
Text mode commands
tput bold # Select bold mode
tput dim # Select dim (half-bright) mode
tput smul # Enable underline mode
tput rmul # Disable underline mode
tput rev # Turn on reverse video mode
tput smso # Enter standout (bold) mode
tput...
MySQL: Sort GROUP_CONCAT values
... see http://dev.mysql.com/doc/refman/...tions.html#function_group-concat:
SELECT student_name,
GROUP_CONCAT(DISTINCT test_score ORDER BY test_score DESC SEPARATOR ' ')
FROM student
GROUP BY student_name;
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mysql create user if not exists
...
I use
SELECT EXISTS (SELECT DISTINCT user FROM mysql.user WHERE user = "username") as is_user
should return 1 if exists or 0 if it does not
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Add a method breakpoint to all methods of a class in EclipseIDE
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The fastest way is to go to the "Outline" view and select all of the methods you want, right-click and click "Toggle Method Breakpoint"
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Is there a best practice for generating html with javascript
...$.template('<div><img src="${url}" />${name}</div>');
$(selector).append( t , {
url: jsonObj.url,
name: jsonObj.name
});
I say go the cool route (and better performing, more maintainable), and use templating.
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XPath with multiple conditions
What XPath can I use to select any category with a name attribute specified and any child node author with the value specified.
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What are the basic rules and idioms for operator overloading?
...ilt-in types and user-defined types. To the former belong for example int, char, and double; to the latter belong all struct, class, union, and enum types, including those from the standard library, even though they are not, as such, defined by users.
2 This is covered in a later part of this FAQ.
3...