ORA-12170: TNS:Connect timeout occurred - Stack Overflow I was trying to connect to the database here in my laptop using Oracle Toad but I kept on having this error: ORA-12170: TNS:Connect timeout occurred What are the possible reasons why I kept on ha
ORA-01403: no data found for Select into - Stack Overflow I am getting ORA-01403: no data found exception for the following query What are the possibilities of this error? SELECT trim (name) INTO fullname FROM ( SELECT n name FROM directory
SQL Error: ORA-02291: integrity constraint - Stack Overflow According to the error: ORA-02291: integrity constraint (string string) violated - parent key not found Cause: A foreign key value has no matching primary key value Action: Delete the foreign key or add a matching primary key This means that there is no matching key in your referenced table EDIT #1