将数据插入到MySQL表,需要使用SQL INSERT INTO命令。可以将数据插入到MySQL表使用mysql>提示符下或使用任何脚本,如PHP。
语法:
下面是通用的SQL语法INSERT INTO命令来插入数据到MySQL表:
INSERT INTO table_name ( field1, field2,...fieldN ) VALUES ( value1, value2,...valueN );
要插入的字符串数据类型,所有的值需要双或单引号,例如: - “value”。
从命令提示符中插入数据:
这将使用SQL INSERT INTO命令将数据插入到MySQL表tutorials_tbl
实例:
下面的例子将创建3条记录到tutorials_tbl表:
root@host# mysql -u root -p password; Enter password:******* mysql> use TUTORIALS; Database changed mysql> INSERT INTO tutorials_tbl ->(tutorial_title, tutorial_author, submission_date) ->VALUES ->("Learn PHP", "John Poul", NOW()); Query OK, 1 row affected (0.01 sec) mysql> INSERT INTO tutorials_tbl ->(tutorial_title, tutorial_author, submission_date) ->VALUES ->("Learn MySQL", "Abdul S", NOW()); Query OK, 1 row affected (0.01 sec) mysql> INSERT INTO tutorials_tbl ->(tutorial_title, tutorial_author, submission_date) ->VALUES ->("JAVA Tutorial", "Sanjay", '2007-05-06'); Query OK, 1 row affected (0.01 sec) mysql>
注意: 所有的箭头符号( - >)是不属于他们表示一个新行的SQL命令,他们会自动创建MySQL提示符下,同时按回车键没有在每一行命令结束的分号。
在上面的例子中,我们没有提供tutorial_id因为创建表时,为此字段定义一个AUTO_INCREMENT选项。因此MySQL负责自动插入这些ID。这里NOW()是一个MySQL函数返回当前的日期和时间。
使用PHP语言插入数据:
可以使用相同SQL INSERT INTO命令PHP函数mysql_query()来将数据插入到MySQL表。
例子:
这个例子将用户从三个参数,并把它们插入到MySQL表:
<html> <head> <title>Add New Record in MySQL Database -by www.yiibai.com/mysql</title> </head> <body> <?php if(isset($_POST['add'])) { $dbhost = 'localhost:3036'; $dbuser = 'root'; $dbpass = 'rootpassword'; $conn = mysql_connect($dbhost, $dbuser, $dbpass); if(! $conn ) { die('Could not connect: ' . mysql_error()); } if(! get_magic_quotes_gpc() ) { $tutorial_title = addslashes ($_POST['tutorial_title']); $tutorial_author = addslashes ($_POST['tutorial_author']); } else { $tutorial_title = $_POST['tutorial_title']; $tutorial_author = $_POST['tutorial_author']; } $submission_date = $_POST['submission_date']; $sql = "INSERT INTO tutorials_tbl ". "(tutorial_title,tutorial_author, submission_date) ". "VALUES ". "('$tutorial_title','$tutorial_author','$submission_date')"; mysql_select_db('TUTORIALS'); $retval = mysql_query( $sql, $conn ); if(! $retval ) { die('Could not enter data: ' . mysql_error()); } echo "Entered data successfully\n"; mysql_close($conn); } else { ?> <form method="post" action="<?php $_PHP_SELF ?>"> <table width="600" border="0" cellspacing="1" cellpadding="2"> <tr> <td width="250">Tutorial Title</td> <td> <input name="tutorial_title" type="text" id="tutorial_title"> </td> </tr> <tr> <td width="250">Tutorial Author</td> <td> <input name="tutorial_author" type="text" id="tutorial_author"> </td> </tr> <tr> <td width="250">Submission Date [ yyyy-mm-dd ]</td> <td> <input name="submission_date" type="text" id="submission_date"> </td> </tr> <tr> <td width="250"> </td> <td> </td> </tr> <tr> <td width="250"> </td> <td> <input name="add" type="submit" id="add" value="Add Tutorial"> </td> </tr> </table> </form> <?php } ?> </body> </html>
数据插入其最好的做法是使用函数get_magic_quotes_gpc()来检查当前的配置设置或对魔术函数的引用。如果函数返回false,则使用函数addslashes()添加斜线引号之前。
可以把周围的许多验证检查,如果输入的数据正确与否,可以采取适当的验证。

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