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Open a new tab in gnome-terminal using command line [closed]
...gnome-terminal installed but you should be able to do this by using a DBUS call on the command-line using dbus-send.
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How to add an auto-incrementing primary key to an existing table, in PostgreSQL?
...le named test1, to which you want to add an auto-incrementing, primary-key id (surrogate) column. The following command should be sufficient in recent versions of PostgreSQL:
ALTER TABLE test1 ADD COLUMN id SERIAL PRIMARY KEY;
Older Versions of PostgreSQL
In old versions of PostgreSQL (prior ...
Random color generator
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You can remove .split('') call. String already have Array indexer.
– ujeenator
Jul 27 '15 at 6:08
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How to expire session due to inactivity in Django?
... just have to make some urls and views to return relevant data to the ajax calls regarding the session expiry.
when the user opts to "renew" the session, so to speak, all you have to do is set requeset.session['last_activity'] to the current time again
Obviously this code is only a start... but it...
Entity Framework - Invalid Column Name '*_ID"
...answered Dec 18 '13 at 8:23
drewiddrewid
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How to create a zip archive with PowerShell?
..., "$aDirectory", "-r";
& $pathToZipExe $arguments;
}
You can the call it like this:
create-7zip "c:\temp\myFolder" "c:\temp\myFolder.zip"
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Delete sql rows where IDs do not have a match from another table
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Using LEFT JOIN/IS NULL:
DELETE b FROM BLOB b
LEFT JOIN FILES f ON f.id = b.fileid
WHERE f.id IS NULL
Using NOT EXISTS:
DELETE FROM BLOB
WHERE NOT EXISTS(SELECT NULL
FROM FILES f
WHERE f.id = fileid)
Using NOT IN:
DELETE FROM BLOB
WHERE fi...
关于php的socket初探 - PHP - 清泛IT论坛，有思想、有深度
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static $id = 0;
static $ct = 0;
$ct_last = $ct;
&...
How do you pass arguments to define_method?
...ethod at runtime that takes optional args and a block and still be able to call the original method with the args and block. Ah, ruby. Specifically, I needed to overwrite Savon::Client.request in my dev env for a single API call to a host I can access only in production. Cheers!
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reference assignment is atomic so why is Interlocked.Exchange(ref Object, Object) needed?
...Data ) is refreshed once in a while and I do it by creating another object called newData and fill it's data structures with new data. When it's done I just assign
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