我有一堆Oracle Sysdate值,这些值需要将其转换为MS中的Unix Epoch时间。
例如具有值的变量
15-MAR-13
应转换为
1363351108398
在PL/SQL
中如何做?
您可以使用此功能。它还考虑了时区,因为Unix Epoche是1970-01-01 00:00:00 UTC!
CREATE OR REPLACE FUNCTION GetEpoche(theTimestamp IN TIMESTAMP, timezone IN VARCHAR2 DEFAULT SESSIONTIMEZONE) RETURN NUMBER DETERMINISTIC IS
timestampUTC TIMESTAMP;
theInterval INTERVAL DAY(9) TO SECOND;
epoche NUMBER;
BEGIN
timestampUTC := FROM_TZ(theTimestamp, timezone) AT TIME ZONE 'UTC';
theInterval := TO_DSINTERVAL(timestampUTC - TO_TIMESTAMP('1970-01-01', 'YYYY-MM-DD') );
epoche := EXTRACT(DAY FROM theInterval)*24*60*60
+ EXTRACT(HOUR FROM theInterval)*60*60
+ EXTRACT(MINUTE FROM theInterval)*60
+ EXTRACT(SECOND FROM theInterval);
RETURN ROUND(1000*epoche);
END GetEpoche;