Fechar
Data
Information
is to convert data into information
Attributes or Field
File/Table
Record/Observation
Database
Organization is the reason why you can find data and how quickly you can find it
Relational Database
Redundancy
common field
Entity Relationship
More info available
non-redundant data
consistent
flexible with queries
Easily findable
Key
Primary Key
Concatenated Key
Foreign Key
Database Management System
Data Normalization
Hierarchical file Organization
Because with large amounts of data, it is easier to split them up and connect them together
They related by a common field
Limited amount of data-entry
Redundant Data
Hard to find values
Webpage
HTML
URL
Web Browser
Cascading Style Sheets
Make your own keys
calculated fields should be numbers
smallest amount of characters
<img src="Matt.jpeg" alt="Description"<img/>
<a href="http://yahoo.com">yahoo<a/>
<Ul>
<li>Matt<li/>
<ul/>
<ol>
<li>Matt<li/>
<li>Merlina<li/>
<ol/>
<dl>
<dt>Merlina<dt/>
<dd>He's the best<dd/>
<dl/>
<t>.......<t/>
<Meta charset='utf-8">
<doctype html>
<html lang="en">
<body>
<h1>
<p><p/>
<h1/>
<body/>
<html/>
