-20448   string-expression CANNOT BE INTERPRETED USING FORMAT STRING format-string FOR THE TIMESTAMP_FORMAT FUNCTION.

The string expression that was specified for the TIMESTAMP_FORMAT function cannot be interpreted with the specified format string to produce a timestamp value.

function-name

The name of the function. The name used to invoke the function could also be TO_DATE or TO_TIMESTAMP.

string-expression

The string expression.

Possible reasons for this error include:

• The string expression is too long or too short for the specified format string.
• The string expression does not conform to the template specified in the format string. For example, 92007 is not a valid value for YYYY, which indicates the year.
• A value in the string expression is not valid for the corresponding format element in the format string. For example, 45 is not a valid value for DD, which indicates the day of the month.