ORA-27411: empty [string] is not a valid repeat interval.

Cause: An empty string '''' was provided as a repeat interval for a window or a schedule.

Action: Specify a valid repeat interval, e.g., ''FREQ=DAILY;BYHOUR=8;BYMINUTE=0;BYSECOND=0'' for a job that executes daily at 8am.

Error Type: ORA

• Additional information for ORA-27411: empty [string] is not a valid repeat interval.27411
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