FIXED_DATE

FIXED_DATE enables you to set a constant date that SYSDATE will always return instead of the current date.

Property	Description
Parameter type	String
Syntax	FIXED_DATE = { YYYY-MM-DD-HH24:MI:SS (or the default Oracle date format) | NONE }
Default value	There is no default value.
Modifiable	ALTER SYSTEM
Modifiable in a PDB	Yes
Basic	No

To undo a fixed date setting, specify FIXED_DATE=NONE. This parameter is useful primarily for testing. The value can be in the format shown above or in the default Oracle date format, without a time.