mysql 数据增删改查

//创建一个数据库表
$sql = "create table if not exists test_mysql(
id int primary key auto_increment,
no int,
name varchar(1024),
key idx_no(no))";
$ret = mysql_query($sql, $link);
if ($ret === false) {
die("Create Table Failed: " . mysql_error($link));
} else {
echo "Create Table Succeed<br />";
}

//插入数据
$sql = "insert into test_mysql(no, name) values(2007,'this is a
test message'),
(2008,'this is another test message'),
(2009,'xxxxxxxxxxxxxx')";
$ret = mysql_query($sql, $link);
if ($ret === false) {
die("Insert Failed: " . mysql_error($link));
} else {
echo "Insert Succeed<br />";
}

//删除数据
$sql = "delete from test_mysql where no = 2008";
$ret = mysql_query($sql, $link);
if ($ret === false) {
die("Delete Failed: " . mysql_error($link));
} else {
echo "Delete Succeed<br />";
}

//修改数据
$sql = "update test_mysql set name = 'yyyyyy' where no = 2009";
$ret = mysql_query($sql, $link);
if ($ret === false) {
die("Update Failed: " . mysql_error($link));
} else {
echo "Update Succeed<br />";
}


//检索数据
$sql = "select id,no,name from test_mysql";
$ret = mysql_query($sql, $link);
if ($ret === false) {
die("Select Failed: " . mysql_error($link));
} else {
echo "Select Succeed<br />";
while ($row = mysql_fetch_assoc($ret)) {
echo "{$row['id']} {$row['no']} {$row['name']}<br />";
}
}

//删除表
$sql = "drop table if exists test_mysql";
$ret = mysql_query($sql, $link);
if ($ret === false) {
die("Drop Table Failed: " . mysql_error($link));
} else {
echo "Drop Table Succeed<br />";
}

?>