How can I solve ORA-00911: invalid character error?

Question

I tried to execute an SQL INSERT with Toad for oracle:

INSERT INTO GRAT_ACTIVITY
   (UUID, IP_ADRESS, SEND_MAIL, DATE_         


        

Answer 1

I'm using a 3rd party program that executes Oracle SQL and I encountered this error. Prior to a SELECT statement, I had some commented notes that included special characters. Removing the comments resolved the issue.