Data Dictionary

In database management systems, a file that defines the basic organization of a database. A data dictionary contains a list of all files in the database, the number of records in each file, and the names and types of each field. Most database management systems keep the data dictionary hidden from users to prevent them from accidentally destroying its contents.

Data dictionaries do not contain any actual data from the database, only bookkeeping information for managing it. Without a data dictionary, however, a database management system cannot access data from the database.

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Blueprint is a CSS framework, which aims to cut down on your development time. It gives you a solid foundation to build your project on top of, with an easy-to-use grid, sensible typography, useful plugins, and even a stylesheet for printing.

WHAT DOES BLUEPRINT HAVE TO OFFER?

• A CSS reset that eliminates the discrepancies across browsers.
• A solid grid that can support the most complex of layouts.
• Typography based on expert principles that predate the web.
• Form styles for great looking user interfaces.
• Print styles for making any webpage ready for paper.
• Plugins for buttons, tabs and sprites.
• Tools, editors, and templates for every step in your workflow.

Find out More on blueprintcss.org

(1) Create Subversion repository parent in /usr/local/svn and a local repository named project1 in /usr/local/svn/project1.

$ sudo mkdir /usr/local/svn
$ sudo svnadmin create /usr/local/svn/project1

(2) Configure Apache so it has read/write access to the repository. Apache runs as user www.

$ sudo chown -R www /usr/local/svn
(3) Configure Apache to support SVN by editing httpd.conf

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bit => Binary
byte => 8 bits
kilo byte => 1024 bytes
mega byte =>1024 kb
giga byte => 1024 mega byte
tera byte => 1024 giga byte
peta byte => 1024 tera byte
exa byte => 1024 exa byte
zitta byte => 1024 zitta byte
yotta  byte => 1024 yotta byte
bronto byte => 1024 bronto byte
geop byte => 1024 geop byte