DBMS_SCHEDULER or DBMS_JOB And DST / Timezones Explained
(Doc ID 467722.1)
Last updated on NOVEMBER 27, 2024
Applies to:
Oracle Database Backup Service - Version N/A and laterOracle Database - Enterprise Edition - Version 9.0.1.0 and later
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Gen 1 Exadata Cloud at Customer (Oracle Exadata Database Cloud Machine) - Version N/A and later
Information in this document applies to any platform.
Purpose
This note gives an overview of how DBMS_SCHEDULER / DBMS_JOB reacts on Daylight Saving Time( DST ) transitions and what to know when using timezone information with jobs.
Scope
To be used when DBMS_SCHEDULER / DBMS_JOB jobs run at a wrong time after a DST change or you have output from jobs selecting from TIMESTAMP WITH LOCAL TIMEZONE columns that is not correct.
If things about timezones are not clear please have first a look at <Note 340512.1> Timestamps & time zones - Frequently Asked Questions.
Details
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In this Document
| Purpose |
| Scope |
| Details |
| When running trough DBMS_SCHEDULER or DBMS_JOB a job output using TIMESTAMP WITH LOCAL TIMEZONE gives the wrong time. |
| Job runtime time after DST has changed. |
| When using DBMS_JOB: |
| When using DBMS_SCHEDULER. |
| How to check the sysdate or systimestamp seen by jobs? |
| References |