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Deleting all records in a database table
How do I delete all records in one of my database tables in a Ruby on Rails app?
7 Answers
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Align contents inside a div
...>
For this to work in IE6, you need to make sure Standards Mode is on by using a suitable DOCTYPE.
If you really need to support IE5/Quirks Mode, which these days you shouldn't really, it is possible to combine the two different approaches to centering:
<div style="text-align: center">
...
Revert to a commit by a SHA hash in Git? [duplicate]
...se any non-committed changes in the working directory).
Additional Notes
By the way, perhaps it is not obvious, but everywhere where documentation says <commit> or <commit-ish> (or <object>), you can put an SHA-1 identifier (full or shortened) of commit.
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error: 'Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2)' — Miss
... should work.
Then, stop the mysqld process. How you do this will vary by system.
If you're super user in the linux system, try one of the following if you don't know the specific method your Mysql setup uses:
service mysqld stop
/etc/init.d/mysqld stop
mysqladmin -u root -p shutdown
Some sys...
What is the use of the square brackets [] in sql statements?
...word becomes colourful in your SQL management studio, should be surrounded by brackets if you want to use them as column / table / sp / etc. names. In MySQL angled single quotes ```` would be the equivalent of this.
– Baz Guvenkaya
Feb 9 '17 at 5:03
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How do I detect “shift+enter” and generate a new line in Textarea?
... I changed it. Now it'll work irrespective of caret position. And by event.stopPropagation() i meant to stop some other code which he may have written to submit the form.
– Jishnu A P
May 16 '11 at 12:23
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PDO mysql: How to know if insert was successful
... any different - re-throw the exception, to make it possible to be handled by the site-wide error handler usual way. Below is the example code from my article on error handling with PDO:
try {
$pdo->prepare("INSERT INTO users VALUES (NULL,?,?,?,?)")->execute($data);
} catch (PDOException...
Member initialization while using delegated constructor
... the constructor is a delegating constructor, and the constructor selected by the is the target constructor. [...]
You can work-around this by defining the version of the constructor that takes arguments first:
Tokenizer::Tokenizer(std::stringstream *lines)
: lines(lines)
{
}
and then define...
How to launch Safari and open URL from iOS app
... if I am opening a website and user is surfing the website now if he stops by a particular page then can I get the current webpage link in my code?
– Varun Jain
Jun 1 '16 at 7:33
3...
How to correctly save instance state of Fragments in back stack?
...ment you should do the following:
1. In the fragment, save instance state by overriding onSaveInstanceState() and restore in onActivityCreated():
class MyFragment extends Fragment {
@Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedI...