Question

In my database I’ve crated a unique constraint that controls the uniqueness of IDTYPE and IDNO pairs. So there cannot be a second row that has IDTYPE of 1 and IDNO of 11232. Obviously if I violate this my application will crash with oracle unique constraint error. How can I catch this and any other error because I do not want to run a query to check if there’s any other row having the same value of IDNO and IDTYPE. If I can catch this error I can show my own description instead of Oracle’s one that only we programmers can understand.

Answer 1

So, if I haven’t misunderstood, you’re looking for a try-catch statement, just like this

try { //code to access DB }
catch (Exception e) { //do some stuff }