| 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 | 
| Basic | No | 
FIXED_DATE enables you to set a constant date that SYSDATE will always return instead of the current date. 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.