MySQL數(shù)據(jù)庫是一款強大的關系型數(shù)據(jù)庫，應用廣泛于WEB開發(fā)、數(shù)據(jù)存儲等領域，以下是一些常見的MySQL操作數(shù)據(jù)庫數(shù)據(jù)的方法：

1. 連接數(shù)據(jù)庫
$conn = mysqli_connect('localhost','root','password','database_name');
if (!$conn){
 die('Could not connect: ' . mysqli_error());
}
2. 插入數(shù)據(jù)
$sql = "INSERT INTO tablename (col1,col2,col3) VALUE ('$val1','$val2','$val3')";
if (mysqli_query($conn,$sql)){
 echo "New record created successfully";
} else {
 echo "Error: " . $sql . "
" . mysqli_error($conn);
}
3. 查詢數(shù)據(jù)
$sql = "SELECT col1,col2,col3 FROM tablename";
$result = mysqli_query($conn, $sql);
if (mysqli_num_rows($result) >0) {
 while($row = mysqli_fetch_assoc($result)) {
 echo "col1: " . $row["col1"]. " - col2: " . $row["col2"]. " - col3: " . $row["col3"]. "
";
 }
} else {
 echo "0 results";
}
4. 更新數(shù)據(jù)
$sql = "UPDATE tablename SET col1='$newval' WHERE col2=$keyval";
if (mysqli_query($conn, $sql)) {
 echo "Record updated successfully";
} else {
 echo "Error updating record: " . mysqli_error($conn);
}
5. 刪除數(shù)據(jù)
$sql = "DELETE FROM tablename WHERE col1=$val";
if (mysqli_query($conn, $sql)) {
 echo "Record deleted successfully";
} else {
 echo "Error deleting record: " . mysqli_error($conn);
}

以上是一些常見的MySQL數(shù)據(jù)庫操作方法，在具體使用時，還需要結合實際需求進行豐富和使用。