$query="SELECT MINUTE (ETA - STA)
FROM `FlightSchedule` WHERE `flightNum_arr`='".$flightNum_arr."';";
$delay=ejecutar_query($query);
$query = "UPDATE `FlightSchedule`
SET `delay`='".$delay."'
W
UPDATE `FlightSchedule`
SET delay=(
SELECT *
FROM (
SELECT
MINUTE(ETA - STA)
FROM `FlightSchedule`
WHERE `flightNum_arr` = '3517'
)
)
WHERE `flightNum_arr` = '3517';
这是我的代码 import com.amazonaws.services.s3.AmazonS3; import com.amazonaws.services.s3.AmazonS3Client; public class AwsS3Helper
{
private AmazonS3 s3Client;
public AwsS3Helper()
{