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Can I have multiple primary keys in a single table?
...,'lax'),('mammal','whale'),
('bird','ostrich');
SELECT * FROM animals ORDER BY grp,id;
Which returns:
+--------+----+---------+
| grp | id | name |
+--------+----+---------+
| fish | 1 | lax |
| mammal | 1 | dog |
| mammal | 2 | cat |
| mammal | 3 | whale |
| bird ...
How does RewriteBase work in .htaccess
...t regardless of whether the rule is in the "root", "subdir1", "subsubdir", etc. the /bar.php path always maps to http://example.com/bar.php.
But the other rule, with the relative path, it's based on the directory that the rule is in. So if
RewriteRule ^foo$ bar.php [L]
is in the "root" and you ...
How to compare Lists in Unit Testing
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If you don't care about item order: {A,B,C} == {C,B,A}, then use CollectionAssert.AreEquivalent instead msdn.microsoft.com/en-us/library/ms243779.aspx
– user2023861
Aug 11 '16 at 20:25
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Event handling for iOS - how hitTest:withEvent: and pointInside:withEvent: are related?
... [super hitTest... to find out whose hitTest:withEvent: is called in which order.
– MHC
Feb 10 '11 at 20:01
shouldn't ...
What's the difference between deque and list STL containers?
...idates only the iterators that point to the elements that are removed. The ordering of iterators may be changed (that is, list::iterator might have a different predecessor or successor after a list operation than it did before), but the iterators themselves will not be invalidated or made to point t...
What does `unsigned` in MySQL mean and when to use it?
...enting the 'sizes' of things, like the quantity of a particular item on an order, or the distance between two locations, will typically be unsigned
– SingleNegationElimination
Oct 9 '10 at 4:28
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Call PowerShell script PS1 from another PS1 script inside Powershell ISE
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In order to find the location of a script, use Split-Path $MyInvocation.MyCommand.Path (make sure you use this in the script context).
The reason you should use that and not anything else can be illustrated with this example sc...
Create new user in MySQL and give it full access to one database
...is the command used to create users and grant rights to databases, tables, etc.
ALL PRIVILEGES - This tells it the user will have all standard privileges. This does not include the privilege to use the GRANT command however.
dbtest.* - This instructions MySQL to apply these rights for use in the e...
Iterate all files in a directory using a 'for' loop
...*) do ( something_here )
In my case I also wanted the file content, name, etc.
This lead to a few issues and I thought my use case might help. Here is a loop that reads info from each '.txt' file in a directory and allows you do do something with it (setx for instance).
@ECHO OFF
setlocal enable...
What's to stop malicious code from spoofing the “Origin” header to exploit CORS?
...calls, sending expensive emails, sending even more expensive sms messages, etc.). When that was done, the server happily sent the spoofed Access-Control-Allow-Origin header back to the browser.
The documentation I've read states that the Access-Control-Allow-Origin value received must match the Ori...