Syntax

“DELETE FROM table_name WHERE column_name=’ value’ “;

In this tutorial create 2 files
1. delete.php
2. delete_ac.php

Step
1. Create table “test_mysql” in database “test”.
2. Create file delete.php.
3. Create file delete_ac.php.Set up database

CREATE TABLE `test_mysql` (
`id` int(4) NOT NULL auto_increment,
`name` varchar(65) NOT NULL default ”,
`lastname` varchar(65) NOT NULL default ”,
`email` varchar(65) NOT NULL default ”,
PRIMARY KEY (`id`)
) TYPE=MyISAM AUTO_INCREMENT=7 ;

–
– Dumping data for table `test_mysql`
–

INSERT INTO `test_mysql` VALUES (1, ‘Billly’, ‘Blueton’, ‘bb5@phpeasystep.com’);
INSERT INTO `test_mysql` VALUES (2, ‘Jame’, ‘Campbell’, ‘jame@somewhere.com’);
INSERT INTO `test_mysql` VALUES (3, ‘Mark’, ‘Jackson’, ‘mark@phpeasystep.com’);
INSERT INTO `test_mysql` VALUES (4, ‘Linda’, ‘Travor’, ‘lin65@phpeasystep.com’);
INSERT INTO `test_mysql` VALUES (5, ‘Joey’, ‘Ford’, ‘fordloi@somewhere.com’);
INSERT INTO `test_mysql` VALUES (6, ‘Sidney’, ‘Gibson’, ‘gibson@phpeasystep.com’);

Create file – delete.php

<?php

$host=”localhost”; // Host name
$username=”"; // Mysql username
$password=”"; // Mysql password
$db_name=”test”; // Database name
$tbl_name=”test_mysql”; // Table name

// Connect to server and select database.
mysql_connect(“$host”, “$username”, “$password”)or die(“cannot connect”);
mysql_select_db(“$db_name”)or die(“cannot select DB”);

// select record from mysql
$sql=”SELECT * FROM $tbl_name”;
$result=mysql_query($sql);

?>
<table width=”400″ border=”0″ cellspacing=”1″ cellpadding=”0″>
<tr>
<td><table width=”400%” border=”0″ cellpadding=”3″ cellspacing=”1″ bgcolor=”#CCCCCC”>
<tr>
<td bgcolor=”#FFFFFF”>&nbsp;</td>
<td colspan=”4″ bgcolor=”#FFFFFF”><strong>Delete data in mysql</strong> </td>
</tr>
<tr>
<td align=”center” bgcolor=”#FFFFFF”><strong>Id</strong></td>
<td align=”center” bgcolor=”#FFFFFF”><strong>Name</strong></td>
<td align=”center” bgcolor=”#FFFFFF”><strong>Lastname</strong></td>
<td align=”center” bgcolor=”#FFFFFF”><strong>Email</strong></td>
<td align=”center” bgcolor=”#FFFFFF”>&nbsp;</td>
</tr>
<?php
while($rows=mysql_fetch_array($result)){
?>
<tr>
<td bgcolor=”#FFFFFF”><? echo $rows['id']; ?></td>
<td bgcolor=”#FFFFFF”><? echo $rows['name']; ?></td>
<td bgcolor=”#FFFFFF”><? echo $rows['lastname']; ?></td>
<td bgcolor=”#FFFFFF”><? echo $rows['email']; ?></td>
<td bgcolor=”#FFFFFF”><a href=”delete_ac.php?id=<? echo $rows['id']; ?>”>delete</a></td>
</tr>
<?

// close while loop
}

// close connection;
mysql_close();

?>
</table></td>
</tr>
</table>

Create file delete_ac.php

<?php

$host=”localhost”; // Host name
$username=”"; // Mysql username
$password=”"; // Mysql password
$db_name=”test”; // Database name
$tbl_name=”test_mysql”; // Table name

// Connect to server and select databse.
mysql_connect(“$host”, “$username”, “$password”)or die(“cannot connect”);
mysql_select_db(“$db_name”)or die(“cannot select DB”);

// get value of id that sent from address bar
$id=$_GET['id'];

// Delete data in mysql from row that has this id
$sql=”DELETE FROM $tbl_name WHERE id=’$id’”;
$result=mysql_query($sql);

// if successfully deleted
if($result){
echo “Deleted Successfully”;
echo “<BR>”;
echo “<a href=’delete.php’>Back to main page</a>”;
}

else {
echo “ERROR”;
}

// close connection
mysql_close();

?>

Source: http://www.phpeasystep.com/

Syntax

“UPDATE table_name SET column_name1=’ value’, column_name2=’ value’ WHERE column_name=’ value’ “;

In this tutorial create 3 files
1. list_records.php
2. update.php
3. update_ac.php

Step
1. Create table “test_mysql” in database “test”
2. Create file list_records.php
3. Create file update.php
4. Create file update_ac.php

Set up database

CREATE TABLE `test_mysql` (
`id` int(4) NOT NULL auto_increment,
`name` varchar(65) NOT NULL default ”,
`lastname` varchar(65) NOT NULL default ”,
`email` varchar(65) NOT NULL default ”,
PRIMARY KEY (`id`)
) TYPE=MyISAM AUTO_INCREMENT=7 ;

–
– Dumping data for table `test_mysql`
–

INSERT INTO `test_mysql` VALUES (1, ‘Billly’, ‘Blueton’, ‘bb5@phpeasystep.com’);
INSERT INTO `test_mysql` VALUES (2, ‘Jame’, ‘Campbell’, ‘jame@somewhere.com’);
INSERT INTO `test_mysql` VALUES (3, ‘Mark’, ‘Jackson’, ‘mark@phpeasystep.com’);
INSERT INTO `test_mysql` VALUES (4, ‘Linda’, ‘Travor’, ‘lin65@phpeasystep.com’);
INSERT INTO `test_mysql` VALUES (5, ‘Joey’, ‘Ford’, ‘fordloi@somewhere.com’);
INSERT INTO `test_mysql` VALUES (6, ‘Sidney’, ‘Gibson’, ‘gibson@phpeasystep.com’);

Create file – list_records.php

View In Dreamweaver / Browser

<?php
$host=”localhost”; // Host name
$username=”"; // Mysql username
$password=”"; // Mysql password
$db_name=”test”; // Database name
$tbl_name=”test_mysql”; // Table name

// Connect to server and select database.
mysql_connect(“$host”, “$username”, “$password”)or die(“cannot connect”);
mysql_select_db(“$db_name”)or die(“cannot select DB”);

$sql=”SELECT * FROM $tbl_name”;
$result=mysql_query($sql);
?>
<table width=”400″ border=”0″ cellspacing=”1″ cellpadding=”0″>
<tr>
<td>
<table width=”400″ border=”1″ cellspacing=”0″ cellpadding=”3″>
<tr>
<td colspan=”4″><strong>List data from mysql </strong> </td>
</tr>

<tr>
<td align=”center”><strong>Name</strong></td>
<td align=”center”><strong>Lastname</strong></td>
<td align=”center”><strong>Email</strong></td>
<td align=”center”><strong>Update</strong></td>
</tr>
<?php
while($rows=mysql_fetch_array($result)){
?>
<tr>
<td><? echo $rows['name']; ?></td>
<td><? echo $rows['lastname']; ?></td>
<td><? echo $rows['email']; ?></td>

// link to update.php and send value of id
<td align=”center”><a href=”update.php?id=<? echo $rows['id']; ?>”>update</a></td>
</tr>
<?php
}
?>
</table>
</td>
</tr>
</table>
<?php
mysql_close();
?>

Create file – update.php

View In Dreamweaver

<?php
$host=”localhost”; // Host name
$username=”"; // Mysql username
$password=”"; // Mysql password
$db_name=”test”; // Database name
$tbl_name=”test_mysql”; // Table name

// Connect to server and select database.
mysql_connect(“$host”, “$username”, “$password”)or die(“cannot connect”);
mysql_select_db(“$db_name”)or die(“cannot select DB”);

// get value of id that sent from address bar
$id=$_GET['id'];

// Retrieve data from database
$sql=”SELECT * FROM $tbl_name WHERE id=’$id’”;
$result=mysql_query($sql);

$rows=mysql_fetch_array($result);
?>
<table width=”400″ border=”0″ cellspacing=”1″ cellpadding=”0″>
<tr>
<form name=”form1″ method=”post” action=”update_ac.php”>
<td>
<table width=”100%” border=”0″ cellspacing=”1″ cellpadding=”0″>
<tr>
<td>&nbsp;</td>
<td colspan=”3″><strong>Update data in mysql</strong> </td>
</tr>
<tr>
<td align=”center”>&nbsp;</td>
<td align=”center”>&nbsp;</td>
<td align=”center”>&nbsp;</td>
<td align=”center”>&nbsp;</td>
</tr>
<tr>
<td align=”center”>&nbsp;</td>
<td align=”center”><strong>Name</strong></td>
<td align=”center”><strong>Lastname</strong></td>
<td align=”center”><strong>Email</strong></td>
</tr>
<tr>
<td>&nbsp;</td>
<td align=”center”><input name=”name” type=”text” id=”name” value=”<? echo $rows['name']; ?>”></td>
<td align=”center”><input name=”lastname” type=”text” id=”lastname” value=”<? echo $rows['lastname']; ?>” size=”15″></td>
<td><input name=”email” type=”text” id=”email” value=”<? echo $rows['email']; ?>” size=”15″></td>
</tr>
<tr>
<td>&nbsp;</td>
<td><input name=”id” type=”hidden” id=”id” value=”<? echo $rows['id']; ?>”></td>
<td align=”center”><input type=”submit” name=”Submit” value=”Submit”></td>
<td>&nbsp;</td>
</tr>
</table>
</td>
</form>
</tr>
</table>

<?

// close connection
mysql_close();

?>

Create file update_ac.php

View In Browser

<?php
$host=”localhost”; // Host name
$username=”"; // Mysql username
$password=”"; // Mysql password
$db_name=”test”; // Database name
$tbl_name=”test_mysql”; // Table name

// Connect to server and select database.
mysql_connect(“$host”, “$username”, “$password”)or die(“cannot connect”);
mysql_select_db(“$db_name”)or die(“cannot select DB”);

// update data in mysql database
$sql=”UPDATE $tbl_name SET name=’$name’, lastname=’$lastname’, email=’$email’ WHERE id=’$id’”;
$result=mysql_query($sql);

// if successfully updated.
if($result){
echo “Successful”;
echo “<BR>”;
echo “<a href=’list_records.php’>View result</a>”;
}

else {
echo “ERROR”;
}

?>

Source: http://www.phpeasystep.com/

Syntax

// Select all columns from all rows.
“SELECT * FROM table_name”;
or
// Select some column from all rows.
“SELECT column_name1, column_name2 FROM table_name”;
or
// Select all coulumns from one row.
“SELECT * FROM table_name WHERE column_name=’ value in column ‘”;

In this tutorial create 1 file
1. select.php

Step
1. Create table “test_mysql” in database “test”.
2. Create file select.php.
3. test it!

If you don’t want looping rows in mysql, replace
while($rows=mysql_fetch_array($result)){
……..
<?php
}
mysql_close();
?>

replace with this
$rows=mysql_fetch_array($result);
………
<?php
mysql_close();
?>

Create table “test_mysql”

CREATE TABLE `test_mysql` (
`id` int(4) NOT NULL auto_increment,
`name` varchar(65) NOT NULL default ”,
`lastname` varchar(65) NOT NULL default ”,
`email` varchar(65) NOT NULL default ”,
PRIMARY KEY (`id`)
) TYPE=MyISAM AUTO_INCREMENT=7 ;

–
– Dumping data for table `test_mysql`
–

INSERT INTO `test_mysql` VALUES (1, ‘Billly’, ‘Blueton’, ‘bb5@phpeasystep.com’);
INSERT INTO `test_mysql` VALUES (2, ‘Jame’, ‘Campbell’, ‘jame@somewhere.com’);
INSERT INTO `test_mysql` VALUES (3, ‘Mark’, ‘Jackson’, ‘mark@phpeasystep.com’);
INSERT INTO `test_mysql` VALUES (4, ‘Linda’, ‘Travor’, ‘lin65@phpeasystep.com’);
INSERT INTO `test_mysql` VALUES (5, ‘Joey’, ‘Ford’, ‘fordloi@somewhere.com’);
INSERT INTO `test_mysql` VALUES (6, ‘Sidney’, ‘Gibson’, ‘gibson@phpeasystep.com’);

Create file – Select.php

Diagram

View In Browser

<?php

$host=”localhost”; // Host name
$username=”"; // Mysql username
$password=”"; // Mysql password
$db_name=”test”; // Database name
$tbl_name=”test_mysql”; // Table name

// Connect to server and select database.
mysql_connect(“$host”, “$username”, “$password”)or die(“cannot connect”);
mysql_select_db(“$db_name”)or die(“cannot select DB”);

// Retrieve data from database
$sql=”SELECT * FROM $tbl_name”;
$result=mysql_query($sql);

// Start looping rows in mysql database.
while($rows=mysql_fetch_array($result)){
?>
<table width=”400″ border=”1″ cellspacing=”0″ cellpadding=”3″>
<tr>
<td width=”10%”><? echo $rows['id']; ?></td>
<td width=”30%”><? echo $rows['name']; ?></td>
<td width=”30%”><? echo $rows['lastname']; ?></td>
<td width=”30%”><? echo $rows['email']; ?></td>
</tr>
</table>

<?
// close while loop
}

// close connection
mysql_close();
?>

Source: http://www.phpeasystep.com/

Syntax

“INSERT INTO table_name(column_name1, column_name2)VALUES(‘value1, ‘value2′)” ;

In this tutorial create 2 files
1. insert.php
2. insert_ac.php

Step
1. Create table “test_mysql” in database “test”.
2. Create file insert.php.
3. Create file insert_ac.php.

Create table “test_mysql”

CREATE TABLE `test_mysql` (
`id` int(4) NOT NULL auto_increment,
`name` varchar(65) NOT NULL default ”,
`lastname` varchar(65) NOT NULL default ”,
`email` varchar(65) NOT NULL default ”,
PRIMARY KEY (`id`)
) TYPE=MyISAM AUTO_INCREMENT=0 ;

Create file insert.php

<table width=”300″ border=”0″ align=”center” cellpadding=”0″ cellspacing=”1″>
<tr>
<td><form name=”form1″ method=”post” action=”insert_ac.php”>
<table width=”100%” border=”0″ cellspacing=”1″ cellpadding=”3″>
<tr>
<td colspan=”3″><strong>Insert Data Into mySQL Database </strong></td>
</tr>
<tr>
<td width=”71″>Name</td>
<td width=”6″>:</td>
<td width=”301″><input name=”name” type=”text” id=”name”></td>
</tr>
<tr>
<td>Lastname</td>
<td>:</td>
<td><input name=”lastname” type=”text” id=”lastname”></td>
</tr>
<tr>
<td>Email</td>
<td>:</td>
<td><input name=”email” type=”text” id=”email”></td>
</tr>
<tr>
<td colspan=”3″ align=”center”><input type=”submit” name=”Submit” value=”Submit”></td>
</tr>
</table>
</form>
</td>
</tr>
</table>

Create file insert_ac.php

<?php

$host=”localhost”; // Host name
$username=”"; // Mysql username
$password=”"; // Mysql password
$db_name=”test”; // Database name
$tbl_name=”test_mysql”; // Table name

// Connect to server and select database.
mysql_connect(“$host”, “$username”, “$password”)or die(“cannot connect”);
mysql_select_db(“$db_name”)or die(“cannot select DB”);

// Get values from form
$name=$_POST['name'];
$lastname=$_POST['lastname'];
$email=$_POST['email'];

// Insert data into mysql
$sql=”INSERT INTO $tbl_name(name, lastname, email)VALUES(‘$name’, ‘$lastname’, ‘$email’)”;
$result=mysql_query($sql);

// if successfully insert data into database, displays message “Successful”.
if($result){
echo “Successful”;
echo “<BR>”;
echo “<a href=’insert.php’>Back to main page</a>”;
}

else {
echo “ERROR”;
}

// close connection
mysql_close();
?>

Source: http://www.phpeasystep.com/

Syntax

mysql_connect(“host”, “username”, “password”)or die(“cannot connect to server”);

Overview

Define your database information, in this example use information of www.phpeasystep.com

* host=”localhost” you don’t have to change it. When it’s on your computer or server it still be localhost

Username = phpeasystep
Password = 1234
Database = test

Test

$host=”localhost”;
$username=”phpeasystep”;
$password=”1234″;
$db_name=”test”;

mysql_connect(“$host”, “$username”, “$password”)or die(“cannot connect to server”);
mysql_select_db(“$db_name”)or die(“cannot select db”);

or

mysql_connect(“localhost”, “phpeaststep”, “1234″)or die(“cannot connect to server”);
mysql_select_db(“test”)or die(“cannot select db”);

Creating file config.php

$host=”localhost”;
$username=”phpeasystep”;
$password=”1234″;
$db_name=”test”;

mysql_connect(“$host”, “$username”, “$password”)or die(“cannot connect to server”);
mysql_select_db(“$db_name”)or die(“cannot select db”);

save this file as “config.php”
when you want to use this code include it to your main php file

example

<?php

include(“config.php”);

$tbl_name=”member”;
$sql=”SELECT * FROM $tbl_name”;
$result=mysql_query($sql);
?>

MySql is a powerful database. It’s very good and free of charge. Many developers in the world selected mysql and php for developing their website.

The MySQL® database has become the world’s most popular open source database because of its consistent fast performance, high reliability and ease of use. It’s used in more than 6 million installations ranging from large corporations to specialized embedded applications on every continent in the world. (Yes, even Antarctica!)

Not only is MySQL the world’s most popular open source database, it’s also become the database of choice for a new generation of applications built on the LAMP stack (Linux, Apache, MySQL, PHP / Perl / Python.) MySQL runs on more than 20 platforms including Linux, Windows, OS/X, HP-UX, AIX, Netware, giving you the kind of flexibility that puts you in control.

Whether you’re new to database technology or an experienced developer or DBA, MySQL offers a comprehensive range of certified software, support, training and consulting to make you successful.

Top Ten Reasons to Use MySQL

1. Scalability and Flexibility

The MySQL database server provides the ultimate in scalability, sporting the capacity to handle deeply embedded applications with a footprint of only 1MB to running massive data warehouses holding terabytes of information. Platform flexibility is a stalwart feature of MySQL with all flavors of Linux, UNIX, and Windows being supported. And, of course, the open source nature of MySQL allows complete customization for those wanting to add unique requirements to the database server.

2. High Performance

A unique storage-engine architecture allows database professionals to configure the MySQL database server specifically for particular applications, with the end result being amazing performance results. Whether the intended application is a high-speed transactional processing system or a high-volume web site that services a billion queries a day, MySQL can meet the most demanding performance expectations of any system. With high-speed load utilities, distinctive memory caches, full text indexes, and other performance-enhancing mechanisms, MySQL offers all the right ammunition for today’s critical business systems.

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Rock-solid reliability and constant availability are hallmarks of MySQL, with customers relying on MySQL to guarantee around-the-clock uptime. MySQL offers a variety of high-availability options from high-speed master/slave replication configurations, to specialized Cluster servers offering instant failover, to third party vendors offering unique high-availability solutions for the MySQL database server.

4. Robust Transactional Support

MySQL offers one of the most powerful transactional database engines on the market. Features include complete ACID (atomic, consistent, isolated, durable) transaction support, unlimited row-level locking, distributed transaction capability, and multi-version transaction support where readers never block writers and vice-versa. Full data integrity is also assured through server-enforced referential integrity, specialized transaction isolation levels, and instant deadlock detection.

5. Web and Data Warehouse Strengths

MySQL is the de-facto standard for high-traffic web sites because of its high-performance query engine, tremendously fast data insert capability, and strong support for specialized web functions like fast full text searches. These same strengths also apply to data warehousing environments where MySQL scales up into the terabyte range for either single servers or scale-out architectures. Other features like main memory tables, B-tree and hash indexes, and compressed archive tables that reduce storage requirements by up to eighty-percent make MySQL a strong standout for both web and business intelligence applications.

6. Strong Data Protection

Because guarding the data assets of corporations is the number one job of database professionals, MySQL offers exceptional security features that ensure absolute data protection. In terms of database authentication, MySQL provides powerful mechanisms for ensuring only authorized users have entry to the database server, with the ability to block users down to the client machine level being possible. SSH and SSL support are also provided to ensure safe and secure connections. A granular object privilege framework is present so that users only see the data they should, and powerful data encryption and decryption functions ensure that sensitive data is protected from unauthorized viewing. Finally, backup and recovery utilities provided through MySQL and third party software vendors allow for complete logical and physical backup as well as full and point-in-time recovery.

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One of the reasons MySQL is the world’s most popular open source database is that it provides comprehensive support for every application development need. Within the database, support can be found for stored procedures, triggers, functions, views, cursors, ANSI-standard SQL, and more. For embedded applications, plug-in libraries are available to embed MySQL database support into nearly any application. MySQL also provides connectors and drivers (ODBC, JDBC, etc.) that allow all forms of applications to make use of MySQL as a preferred data management server. It doesn’t matter if it’s PHP, Perl, Java, Visual Basic, or .NET, MySQL offers application developers everything they need to be successful in building database-driven information systems.

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9. Open Source Freedom and 24 x 7 Support

Many corporations are hesitant to fully commit to open source software because they believe they can’t get the type of support or professional service safety nets they currently rely on with proprietary software to ensure the overall success of their key applications. The questions of indemnification come up often as well. These worries can be put to rest with MySQL as complete around-the-clock support as well as indemnification is available through MySQL Network. MySQL is not a typical open source project as all the software is owned and supported by MySQL AB, and because of this, a unique cost and support model are available that provides a unique combination of open source freedom and trusted software with support.

10. Lowest Total Cost of Ownership

By migrating current database-drive applications to MySQL, or using MySQL for new development projects, corporations are realizing cost savings that many times stretch into seven figures. Accomplished through the use of the MySQL database server and scale-out architectures that utilize low-cost commodity hardware, corporations are finding that they can achieve amazing levels of scalability and performance, all at a cost that is far less than those offered by proprietary and scale-up software vendors. In addition, the reliability and easy maintainability of MySQL means that database administrators don’t waste time troubleshooting performance or downtime issues, but instead can concentrate on making a positive impact on higher level tasks that involve the business side of data.

Source: http://www.phpeasystep.com/