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Glorified classes in the Java language
...ledged status of an enum is include it in a switch statement.
Object - the root of all objects (and I would add its clone and finalize methods are not something you could implement)
References: WeakReference, SoftReference, PhantomReference
Thread - the language doesn't give you a specific instructi...
How can I get column names from a table in Oracle?
... this question works better as a general one. (I came here looking for the mySQL one.)
– icedwater
Feb 17 '14 at 6:02
add a comment
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Best way to create custom config options for my Rails app?
...er in config/initializers:
# Rails 2
APP_CONFIG = YAML.load_file("#{RAILS_ROOT}/config/config.yml")[RAILS_ENV]
# Rails 3+
APP_CONFIG = YAML.load_file(Rails.root.join('config/config.yml'))[Rails.env]
If you're using Rails 3, ensure you don't accidentally add a leading slash to your relative confi...
Groovy Shell warning “Could not open/create prefs root node …”
...JDK source code for WindowsPreferences.java. In this class, both nodes userRoot and systemRoot were declared static as in:
/**
* User root node.
*/
static final Preferences userRoot =
new WindowsPreferences(USER_ROOT_NATIVE_HANDLE, WINDOWS_ROOT_PATH);
/**
* System root node.
*/
static fin...
SQL Server SELECT INTO @variable?
...not all support TOP 1 as Adrian mentioned. SQL Server / MS Access use TOP, MySQL uses LIMIT, and Oracle uses ROWNUM. See w3schools.com/sql/sql_top.asp for more information.
– Tyler
Jul 7 '17 at 12:08
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How to tell git to ignore individual lines, i.e. gitignore for specific lines of code [duplicate]
...of do it with git filters:
Create/Open gitattributes file:
<project root>/.gitattributes (will be committed into repo)
OR
<project root>/.git/info/attributes (won't be committed into repo)
Add a line defining the files to be filtered:
*.rb filter=gitignore, i.e. run filter named g...
Converting an integer to a string in PHP
...
Good point. I threw in some mysql_escape_string functions in there to clean it up.
– Chris Thompson
Jun 23 '09 at 23:33
6
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Ruby on Rails: how do I sort with two columns using ActiveRecord?
...
Assuming you're using MySQL,
Model.all(:order => 'DATE(updated_at), price')
Note the distinction from the other answers. The updated_at column will be a full timestamp, so if you want to sort based on the day it was updated, you need to use ...
Reintegrate can only be used if revisions X through Y were previously merged from to reintegra
...was due to merging a revision from a child folder rather doing this on the root folder. My issue was - I had performed the merge but the root folder hadn't recognised that the merge had happened, this meant that I had to manually update the mergeinfo prop with the missing revision numbers. NOT...
How to encrypt/decrypt data in php?
...INARY.
The output value, like the IV, is binary; to store those values in MySQL, consider using BINARY or VARBINARY columns. If this is not an option, you can also convert the binary data into a textual representation using base64_encode() or bin2hex(), doing so requires between 33% to 100% more st...