ORA-01722: invalid number


Oracle/PLSQL: ORA-01722

Learn the cause and how to resolve the ORA-01722 error message in Oracle.


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

  • ORA-01722: invalid number


You executed a SQL statement that tried to convert a string to a number, but it was unsuccessful.


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

Option #1

Only numeric fields or character fields that contain numeric values can be used in arithmetic operations. Make sure that all expressions evaluate to numbers.

Option #2

If you are adding or subtracting from dates, make sure that you added/substracted a numeric value from the date.

Leave a Reply

Your email address will not be published. Required fields are marked *