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Django database query: How to get object by id?
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If you want to get an object, using get() is more straightforward:
obj = Class.objects.get(pk=this_object_id)
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imp...
Remove duplicated rows
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@user1897691 mark it as correct then ;) watch this and if you like that, check twotorials.com
– Anthony Damico
Dec 20 '12 at 7:25
3
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throws Exception in finally blocks
...Elsewhere:
protected void closeQuietly( Resource resource ) {
try {
if (resource != null) {
resource.close();
}
} catch( Exception ex ) {
log( "Exception during Resource.close()", ex );
}
}
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How to get the type of a variable in MATLAB?
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for conditionals: if ( string(class(b)) == 'double' ) fprintf(1, 'b is double'); end
– khaverim
Apr 16 at 18:09
add a ...
Which SQL query is faster? Filter on Join criteria or Where clause?
...same plans)
Logically, you should make the operation that still has sense if you replace INNER JOIN with a LEFT JOIN.
In your very case this will look like this:
SELECT *
FROM TableA a
LEFT JOIN
TableXRef x
ON x.TableAID = a.ID
AND a.ID = 1
LEFT JOIN
TableB b
ON ...
Global variables in Javascript across multiple files
... the HTML that calls this JavaScript code I find myself in need of knowing if a certain function from helpers.js has been called.
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Password hint font in Android
...hen an EditText is in password mode, it seems that the hint is shown in a different font (courrier?). How can I avoid this? I would like the hint to appear in the same font that when the EditText is not in password mode.
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git ignore exception
...t ignore *.dll files, and that is actually the behavior I want. However, if I want an exception ( i.e. to be able to commit foo.dll ), how can I achieve this?
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jQuery and AJAX response header
...e form of a 302 redirect. I'd like to take this redirect and load it in an iframe, but when I try to view the header info with a javascript alert, it comes up null, even though firebug sees it correctly.
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How to execute a MySQL command from a shell script?
..."server-name" -u "root" "-pXXXXXXXX" "database-name" < "filename.sql"
If you use a space after -p it makes the mysql client prompt you interactively for the password, and then it interprets the next command argument as a database-name:
$ mysql -h "server-name" -u "root" -p "XXXXXXXX" "database...