<html>
<head>
<style>
body {background-color:lightgrey}
h1 {color:blue}
p {color:green}
</style>
</head>
<body>
<h1>This is a heading</h1>
<p>This is a paragraph.</p>
</body>
</html>
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<!DOCTYPE html>
<html>
<body>
<p><a href="html_images.asp">HTML Images</a> is a link to a page on this website.</p>
<p><a href="http://www.w3.org/">W3C</a> is a link to a website on the World Wide Web.</p>
</body>
</html>
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<!DOCTYPE html>
<html>
<body>
<p>The image is a link. You can click on it.</p>
<a href="default.asp">
<img src="smiley.gif" alt="HTML tutorial" style="width:42px;height:42px;border:0">
</a>
<p>We have added "border:0" to prevent IE9 (and earlier) from displaying a border around the image.</p>
</body>
</html>
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<!DOCTYPE html>
<html>
<body>
<h2>Spectacular Mountain</h2>
<img src="pic_mountain.jpg" alt="Mountain View" style="width:304px;height:228px;">
</body>
</html>
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<!DOCTYPE html>
<html>
<body>
<form action="action_page.php">
First name:<br>
<input type="text" name="firstname" value="Mickey">
<br>
Last name:<br>
<input type="text" name="lastname" value="Mouse">
<br><br>
<input type="submit" value="Submit">
</form>
<p>If you click the "Submit" button, the form-data will be sent to a page called "action_page.php".</p>
</body>
</html>
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The Method Attribute
The method attribute specifies the HTTP method (GET or POST) to be used when submitting the forms:
<form action="action_page.php" method="get">
or:
<form action="action_page.php" method="post">
You can use GET (the default method):
If the form submission is passive (like a search engine query), and without sensitive information.
When to Use POST?
You should use POST:
If the form is updating data, or includes sensitive information (password).
POST offers better security because the submitted data is not visible in the page address.
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<!DOCTYPE html>
<html>
<body>
<input type="button" onclick="alert('Hello World!')" value="Click Me!">
</body>
</html>
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Some of The Most Important SQL Commands
- SELECT - extracts data from a database
- UPDATE - updates data in a database
- DELETE - deletes data from a database
- INSERT INTO - inserts new data into a database
- CREATE DATABASE - creates a new database
- ALTER DATABASE - modifies a database
- CREATE TABLE - creates a new table
- ALTER TABLE - modifies a table
- DROP TABLE - deletes a table
- CREATE INDEX - creates an index (search key)
- DROP INDEX - deletes an index
