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Difference between one-to-many and many-to-one relationship
...th many rows in another table. In the example from SQL for beginners, one Customer may be associated to many Orders.
In the opposite many-to-one relationship, the local table may have many rows that are associated with one row in another table. In our example, many Orders may be associated to one...
What does %5B and %5D in POST requests stand for?
...
Not least important is why these symbols occur in url.
See https://www.php.net/manual/en/function.parse-str.php#76792, specifically:
parse_str('foo[]=1&foo[]=2&foo[]=3', $bar);
the above produces:
$bar = ['foo' => ['1', '2', '3'] ];
and what is THE method to separate query vars ...
SQL Call Stored Procedure for each Row without using a cursor
...nippet does have its place..
-- Declare & init (2008 syntax)
DECLARE @CustomerID INT = 0
-- Iterate over all customers
WHILE (1 = 1)
BEGIN
-- Get next customerId
SELECT TOP 1 @CustomerID = CustomerID
FROM Sales.Customer
WHERE CustomerID > @CustomerId
ORDER BY CustomerID
--...
UIBarButtonItem with custom image and no border
I want to create a UIBarButtonItem with a custom image, but I don't want the border that iPhone adds, as my Image has a special border.
...
What's the difference between a 302 and a 307 redirect?
...g the method to GET.
Example usage: if the browser sent POST to /register.php, then now load (GET) /success.html.
307: temporary redirect, repeating the request identically.
Example usage: if the browser sent a POST to /register.php, then this tells it to redo the POST at /signup.php.
308: permanen...
XMLHttpRequest cannot load file. Cross origin requests are only supported for HTTP
...rive:\Folder\Folder\etc to get to the folder where your .Html file is (or php, etc)
Check the path. type: path at the command prompt. You must see the path to the folder where python is located. For example, if python is in C:\Python27, then you must see that address in the paths that are listed...
LINQ Single vs First
...() but that's a different question.
Take, for example, a table that stores Customers in different languages using a Composite Key ( ID, Lang ):
DBContext db = new DBContext();
Customer customer = db.Customers.Where( c=> c.ID == 5 ).First();
This code above introduces a possible logic error ( dif...
Defining custom attrs
... <declare-styleable> element. This allows you to define attributes a custom view can use. You do this by specifying an <attr> element, if it was previously defined you do not specify the format. If you wish to reuse an android attr, for example, android:gravity, then you can do that in t...
Which MySQL data type to use for storing boolean values
...
Going for char, in PHP at least, will lead to more code as !$boolean will never evaluate properly without further processing.
– Mild Fuzz
Jun 1 '11 at 20:58
...
Apache Prefork vs Worker MPM
...he earlier, threadsafe model. Worker is multi-threaded, and event supports php-mpm which is supposed to be a better system for handling threads and requests.
However, your results may vary, based on configuration. I've seen a lot of instability in php-mpm and not any speed improvements. An aggress...