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Implementing Comments and Likes in database
...ucture
This pseudocode will get all the comments of photo with ID 5
SELECT * FROM actions
WHERE actions.id_Stuff = 5
AND actions.typeStuff="photo"
AND actions.typeAction = "comment"
This pseudocode will get all the likes or users who liked photo with ID 5
(you may use count() to ...
Algorithm to return all combinations of k elements from n
... takes an array of letters as an argument and a number of those letters to select.
71 Answers
...
How to move columns in a MySQL table?
...min provides a GUI for this within the structure view of a table.
Check to select the column you want to move and click the change action at the bottom of the column list.
You can then change all of the column properties and you'll find the 'move column' function at the far right of the screen.
Of ...
C# DropDownList with a Dictionary as DataSource
...fy "Value" and "Key" for DataTextField and DataValueField respectively, to select the Value/Key properties.
Thanks to Joe's comment, I reread the question to get these the right way round. Normally I'd expect the "key" in the dictionary to be the text that's displayed, and the "value" to be the val...
How do I perform the SQL Join equivalent in MongoDB?
...background as well, I would appreciate MongoDB taking a 'result set' (with selected returned fields) as input for a new query in one go, much like nested queries in SQL
– Stijn Sanders
Nov 26 '10 at 23:17
...
Restore Eclipse subversion project connection
...h Subversive, I did:
File/Import brings up the Import popup.
From there, select General/Existing Projects in to Workspace.
In the next pane, you select the root directory. Then it will show you all the
subdirectories. They'll all be selected by default.
Unselect the ones you don't want.
It will ...
Postgresql - unable to drop database because of some auto connections to DB
...n psql)
You can then terminate all connections to this db except your own:
SELECT pid, pg_terminate_backend(pid)
FROM pg_stat_activity
WHERE datname = current_database() AND pid <> pg_backend_pid();
On older versions pid was called procpid so you'll have to deal with that.
Since you've revo...
Turn off iPhone/Safari input element rounding
... none;
border-radius: 0;
}
Note: Please don't use this code for the Select Option. It will have problem on our select.
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SQL DELETE with INNER JOIN
...d = n.idTemplate
WHERE n.type = "monster";
It might be a better idea to select the rows before deleting so you are sure your deleting what you wish to:
SELECT * FROM spawnlist
INNER JOIN npc ON spawnlist.npc_templateid = npc.idTemplate
WHERE npc.type = "monster";
You can also check the MySQL d...
How can I get all constants of a type by reflection?
...mp;& !fi.IsInitOnly && fi.FieldType == typeof(T))
.Select(x => (T)x.GetRawConstantValue())
.ToList();
}
}
Then for a class like this
static class MyFruitKeys
{
public const string Apple = "apple";
public const string Plum = "plum";
public con...