Nano seconds in Java

1. Get backport-util-concurrent.jar from nexus

<dependency>

<groupid>backport-util-concurrent</groupid>

<artifactid>backport-util-concurrent</artifactid>

<version>3.1</version>

</dependency>

• code snippet

   import java.util.concurrent.TimeUnit;

long timeInMillis = System.currentTimeMillis();

• You can use query to get the DB time

select extract(day from(systimestamp - to_timestamp('1970-01-01', 'YYYY-MM-DD'))) * 86400000 + to_number(to_char(sys_extract_utc(systimestamp), 'SSSSSFF3')) current_time_milliseconds

    from dual;

• Timestamp dbTimeStamp = result of above quey...

long nanos = TimeUnit.SECONDS.toNanos(System.currentTimeMillis());
dbTimeStamp.setNanos((int) (nanos % 1000000000));