Can I use notepad++ to edit my.cnf [closed] - mysql

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Can I use notepad++ to edit my.cnf , to tell the truth I don't much about mysql, but it seems that I have to optimize mysql, so thats all the reason. I am wary about pico, nano, as I don't know how to use them and the command lines.

Of course you can. This is the header of that file:
# The MySQL database server configuration file.
#
# You can copy this to one of:
# - "/etc/mysql/my.cnf" to set global options,
# - "~/.my.cnf" to set user-specific options.

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Use Ruby database on Rails [closed]

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I created a mysql database with Ruby. I want to use it on my Rails app. How can I do it? How can I read data with Rails without any database?
Not sure what the real question is, but by default Rails uses a SQLite DB for development and testing. This can be changed in the database.yml file found in the config directory.
However I would really start here Rails Guides

mediawiki standard install did not generate a localsettings.php [closed]

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I did a successful install of media wiki, but when I look to the root directory holding index.php I don't see localsettings.php
Where can I find this file? The documentation says that the default values are in includes/defaultsettings.php but I don't see that either.
My guess would be that you did something wrong in the installation. I would go ahead and try to install it a second time.

LocalSettings.php not found - mediawiki installation [closed]

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When I wanna install mediawiki 1.18.2, at the beginning of the installation process it tells that "LocalSettings.php not found." and after clicking next a blank white page appears. It tried to find LocalSettings.php on my server but no such file existed. what should I do?
From the MediaWiki website installation instructions:
This is an index of all supported configuration options based on the DefaultSettings.php file.
Never edit DefaultSettings.php; copy appropriate lines to LocalSettings.php instead and amend them as appropriate.
Create your own LocalSettings.php by copying DefaultSettings.php, and then go through and delete the stuff you don't need/want.

what is MySQL.txt file? [closed]

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i have a very big file
C:\Program Files\MySQL.txt
it is about 12.2 GB
what is this file? and should it be there?
because i could use such a space. :)
It is not a "standard" MySQL file, look inside maybe it is a backup dump left there. However i think you can delete it without breaking anything.
A MySQL log file holds all the transactions happening through MySQL.
As u mentioned its 12 GB I don't think so it will be easily handled by any software to read the contents inside it.You can delete it without affecting MySQL.

Where is Percona's my.cnf file? [closed]

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I cannot find where the setting files my.cnf or my.ini are. I want to change some aspecte of the configuration.
I'm using Centos 6.
By default my.cnf is not created. You have to create it yourself.
see this
Percona does not come with a my.cnf file. You create it yourself, presumably to prevent people from blindly using default settings.
You should try checking /etc/mysql/my.cnf.