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What is Full Text Search vs LIKE
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MySQL creates an index from the words of the enabled full-text search column and performs searches on this index. MySQL uses a sophisticated algorithm to determine the rows matched against the search query.
Also, from this S...
How exactly does a generator comprehension work?
...iterables, something like a cursor which moves on a resource. If you know mysql cursor or mongodb cursor, you may be aware of that the whole actual data never gets loaded into the memory at once, but one at a time. Your cursor moves back and forth, but there is always a one row/list element in memo...
List files by last edited date
...ort | cut -f 2- -d ' '
The result looks a lot like ls -l:
-rw-r--r-- 1 root root 3892 08/11/2009 11:03:36 /usr/share/man/man1/xmllint.1.gz
-rw-r--r-- 1 root root 22946 08/13/2009 11:59:20 /usr/share/man/man1/curl.1.gz
-rw-r--r-- 1 root root 728 08/17/2009 12:0...
Find document with array that contains a specific value
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As someone new to Mongo coming from an RDBMS like MySQL, to find that such solutions work so simply without needing JOINs and additional tables makes me wonder why I haven't started on Mongo sooner. But that's not to say either DBMS is superior over the other - it depends on...
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...
What is the difference between trie and radix trie data structures?
... "smiled", "smiles" and "smiling" using the following static assignments:
root['s']['m']['i']['l']['e']['\0'] = smile_item;
root['s']['m']['i']['l']['e']['d']['\0'] = smiled_item;
root['s']['m']['i']['l']['e']['s']['\0'] = smiles_item;
root['s']['m']['i']['l']['i']['n']['g']['\0'] = smiling_item;
...
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...
How to handle dependency injection in a WPF/MVVM application
...ar container = CreateContainer();
var viewModel = container.Resolve<RootViewModel>();
var window = new MainWindow { DataContext = viewModel };
window.Show();
}
}
This is based around an object graph of view-models rooted at the RootViewModel but you can inject some view-model ...
Select something that has more/less than x character
...nks.
Here's the link to the MSDN
For oracle/plsql you can use Length(), mysql also uses Length.
Here is the Oracle documentation:
http://www.techonthenet.com/oracle/functions/length.php
And here is the mySQL Documentation of Length(string):
http://dev.mysql.com/doc/refman/5.1/en/string-functi...
Why are the Level.FINE logging messages not showing?
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The Why
java.util.logging has a root logger that defaults to Level.INFO, and a ConsoleHandler attached to it that also defaults to Level.INFO.
FINE is lower than INFO, so fine messages are not displayed by default.
Solution 1
Create a logger for your wh...