how to upload and retrieve video files using mysql

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PHP

I am using the scripts for upload file, the scripts was

if($_REQUEST[submit]){
$target_path = "upload/";
$target_path = $target_path . basename( $_FILES['uploadedfile']['name']); 
$file_name = basename( $_FILES['uploadedfile']['name']);
if(move_uploaded_file($_FILES['uploadedfile']['tmp_name'], $target_path))
 {
 $result=MYSQL_QUERY("INSERT INTO files (File_Id, File_Name) ". "VALUES ('','$file_name')");
    echo "The file ".  basename( $_FILES['uploadedfile']['name']). 
    " has been uploaded";
} else{
    echo "There was an error uploading the file, please try again!";
}

}

but it uploads other type of files, does not upload video files. my video has the size of 50mb. i check out the max_file_upload size, it has 128mb. So can you help me to upload and retrieve?