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How to create relationships in MySQL
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If the tables are innodb you can create it like this:
CREATE TABLE accounts(
account_id INT NOT NULL AUTO_INCREMENT,
customer_id INT( 4 ) NOT NULL ,
account_type ENUM( 'savings', 'credit' ) NOT NULL,
balance...
When NOT to call super() method when overriding?
... will perform the save() logic for both A and B, in this particular order. If you weren't calling super.save() inside B.save(), A.save() wouldn't be called. And if you called super.save() after save(b), A.save() would be effectively performed afterwards B.save().
If you want to override super's beh...
jQuery multiple events to trigger the same function
...(or may not) be required depending on when the script is loaded / run, and if the elements exist in the DOM at the time the script is loaded / run.
– random_user_name
Jan 11 '17 at 16:57
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How to concatenate multiple lines of output to one line?
If I run the command cat file | grep pattern , I get many lines of output. How do you concatenate all lines into one line, effectively replacing each "\n" with "\" " (end with " followed by space)?
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Difference between Django's annotate and aggregate methods?
...think the comments on an eight-year-old question is the best place to ask. If you want to check when the queries run, then you can check connection.queries. Hint: check whether it's the book = q[0] or ` book.num_authors` that causes the query.
– Alasdair
Jul 31...
Actionbar notification count icon (badge) like Google has
Is there a android standard badge or method to show action bar notification icon with a count like on Google examples?
9 An...
Refresh a page using JavaScript or HTML [duplicate]
...ing window.location to a variable (not executing a function) won't refresh if your address bar has a #hashValue in it, it will simply move to that ID on the page if it exists.
– Arve Systad
Oct 30 '14 at 19:56
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How to set the UITableView Section title programmatically (iPhone/iPad)?
...ryboards . The UITableView is setup with static cells and a number of different sections.
8 Answers
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Why is the parent div height zero when it has floated children
...t isn't floating (so nothing stops the height of the container being 0, as if it were empty).
Setting overflow: hidden on the container will avoid that by establishing a new block formatting context. See methods for containing floats for other techniques and containing floats for an explanation abo...
Accessing UI (Main) Thread safely in WPF
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@l46kok This can have different reasons (console app, hosting from winforms etc.). As @WolfgangZiegler said, you can use any UIElement for it. I just usually use Application.Current for it since it looks cleaner to me.
– Botz3...