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MySQL: Order by field size/length
Here is a table structure (e.g. test):
3 Answers
3
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Can I change a private readonly field in C# using reflection?
...am not aware of any place where we document that readonly fields must be mutable via reflection. As far as I know, a conforming implementation of the CLI is perfectly free to implement readonly fields such that they throw exceptions when mutated via reflection after the constructor is done.
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submitting a GET form with query string params and hidden params disappear
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What you can do is using a simple foreach on the table containing the GET information. For example in php :
foreach ($_GET as $key => $value) {
echo("<input type='hidden' name='$key' value='$value'/>");
}
...
Checkstyle vs. PMD
...ll three overlap to a degree and also bring their own, unique rules to the table. This is why tools like Sonar use all three.
That said, Findbugs has the most specific or niche rules (e.g. "Dubious catching of IllegalMonitorStateException" - how often are you likely to run into that?) so it is usab...
Good reasons to prohibit inheritance in Java?
...ion of inherited classes with their parents can be surprising and unpredicatable if the ancestor wasn't designed to be inherited from.
Classes should therefore come in two kinds :
Classes designed to be extended, and with enough documentation to describe how it should be done
Classes marked fina...
Error installing mysql2: Failed to build gem native extension
...\models\city.rb to look like this
class City < ActiveRecord::Base
set_table_name "city"
end
Edit the file c:\Sites\world\config\database.yml to look like this
development:
adapter: mysql2
encoding: utf8
database: world
pool: 5
username: root
password: root
socket: /tmp/mysql.sock
add to ge...
Check if a given key already exists in a dictionary and increment it
...handling in languages is always a order of magnitude greater than the hash table lookup that determines whether the item exists or not in the dictionary", while you are saying "It also avoids the duplicate key lookup in the dictionary ... if lookup is expensive" - does anyone have any measurements o...
What exactly is an Assembly in C# or .NET?
...alls.
The assembly can also contain resources like icons, bitmaps, string tables and so on. Furthermore, the assembly also contains metadata in the assembly manifest - information like version number, strong name, culture, referenced assemblies and so forth.
In 99% of your cases, one assembly equ...
How to get min/max of two integers in Postgres/SQL?
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Have a look at GREATEST and LEAST.
UPDATE my_table
SET my_column = GREATEST(my_column - 10, 0);
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How to get current user, and how to use User class in MVC5?
...ith mvc5 (membership 2): User.Identity.GetUserId() is different with id in table [AspNetUsers]. So Jakub Arnold and Rok is correct way
– Grey Wolf
Sep 26 '14 at 7:18
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