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JPA eager fetch does not join
...loading when constructing a customer class with a collection for customer orders. If you retrieved every order for a customer when you wanted to get a customer list this may be a expensive database operation when you only looking for customer name and contact details. Best to leave the db access ti...
Error message “Forbidden You don't have permission to access / on this server” [closed]
...is rule:
IF MATCHED BY BOTH, THE LAST DIRECTIVE IS THE ONE THAT WILL WIN
Order allow,deny
Deny will win if matched by both directives (even if an allow directive is written after the deny in the conf)
Order deny,allow
allow will win if matched by both directives
Example 1
Order allow,deny
All...
Why use String.Format? [duplicate]
... You have {0} products in your basket.
3 Thank-you for your order. Your {0} will arrive in {1} working days.
vs:
_id _translation
1 Welcome
2 to
3 . Today is
4 .
5 You have
6 products in your basket.
7 ...
Sort a single String in Java
...a lot harder... hopefully you don't need this :) In addition, this is just ordering by ordinal, without taking capitalisation, accents or anything else into account.
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...
Reminder - \r\n or \n\r?
...ater look at a PC keyboard, see the key called "Enter," and get the letter order wrong!
– Rob Kennedy
Jun 30 '11 at 19:36
3
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Lost connection to MySQL server at 'reading initial communication packet', system error: 0
...
The problem on my case was MySQL being bind only to the lo on linux.
in order to solve the problem i have edited the my.cnf (found at /etc/mysql/my.cnf) removing the line bind-address=127.0.0.1
this allows mysql to bind to any network interface
...
How do I alter the position of a column in a PostgreSQL database table?
...on" in the PostgreSQL Wiki says:
PostgreSQL currently defines column
order based on the attnum column of
the pg_attribute table. The only way
to change column order is either by
recreating the table, or by adding
columns and rotating data until you
reach the desired layout.
That's ...
Encapsulation vs Abstraction?
...escribing something in simpler terms, i.e abstracting away the details, in order to focus on what is important (This is also seen in abstract art, for example, where the artist focuses on the building blocks of images, such as colour or shapes). The same idea translates to OOP by using an inheritan...
JSON.Net Self referencing loop detected
...
Add "[JsonIgnore]" to your model class
{
public Customer()
{
Orders = new Collection<Order>();
}
public int Id { get; set; }
public string Name { get; set; }
public string Surname { get; set; }
[JsonIgnore]
public ICollection<Order> Orders { get; set; }
}
...
Switch statement for greater-than/less-than
...re per case and therefore faster, but still very slow except in Opera. The order of the case statement is important since the engine will test each case in source code order ECMAScript262:5 12.11
switch (true) {
case (val < 1000): /* do something */ break;
case (val < 2000): /* do somethi...