How to resolve ORA-00975 Error Message in Oracle database

Learn the purpose and how to resolve the ORA-00975 error message in Oracle.


When you encounter an ORA-00975 error, the following error message will appear:

ORA-00975: date + date not allowed


You tried to add two dates together. This is not allowed. You can only add numeric values to dates.


The option(s) to resolve this Oracle error are:

Option #1

Re-write your expression so that a numeric price is brought to the date.

For example, if you tried to execute the following SQL statement:

SELECT sysdate + sysdate
FROM dual;

You would receive the following error message:

You may want to right this error by way of substituting one date with a numeric value such as:

SELECT sysdate + 365
FROM dual;