【MySQL】3、Insert Into增加语句

3. Insert Into增加语句

INSERT INTO 语句用于向数据库表添加新记录。

INSERT INTO table_name
VALUES (value1, value2,....)

您还可以规定希望在其中插入数据的列：

INSERT INTO table_name (column1, column2,...)
VALUES (value1, value2,....)

注释：SQL 语句对大小写不敏感。INSERT INTO 与 insert into 相同。

示例：

<?php
$servername ="localhost";
$username ="username";
$password ="password";
$dbname ="myDB";
// 创建连接
$conn = mysqli_connect($servername, $username, $password, $dbname);
// 检测连接
if(!$conn){
die("Connection failed: ". mysqli_connect_error());
}
//一条一条写入数据
$sql ="INSERT INTO MyGuests (firstname, lastname, email)
VALUES ('John', 'Doe', '[email protected]')";
if(mysqli_query($conn, $sql)){
echo "新记录插入成功";
}else{
echo "Error: ". $sql ."<br>". mysqli_error($conn);
}
/* 多条写入数据
$sql = "INSERT INTO MyGuests (firstname, lastname, email)
VALUES ('John', 'Doe', '[email protected]');";
$sql .= "INSERT INTO MyGuests (firstname, lastname, email)
VALUES ('Mary', 'Moe', '[email protected]');";
$sql .= "INSERT INTO MyGuests (firstname, lastname, email)
VALUES ('Julie', 'Dooley', '[email protected]')";
if (mysqli_multi_query($conn, $sql)) {
echo "新记录插入成功";
} else {
echo "Error: " . $sql . "<br>" . mysqli_error($conn);
}
*/
mysqli_close($conn);
?>