custom-exceptions – Make Me Engineer

C#: Throwing Custom Exception Best Practices

May 25, 2023 by Tarik

Based on my experience with libraries, you should wrap everything (that you can anticipate) in a FooException for a few reasons: People know it came from your classes, or at least, their usage of them. If they see FileNotFoundException they may be looking all over for it. You’re helping them narrow it down. (I realize … Read more

Oracle PL/SQL – Raise User-Defined Exception With Custom SQLERRM

August 31, 2022 by Tarik

Yes. You just have to use the RAISE_APPLICATION_ERROR function. If you also want to name your exception, you’ll need to use the EXCEPTION_INIT pragma in order to associate the error number to the named exception. Something like SQL> ed Wrote file afiedt.buf 1 declare 2 ex_custom EXCEPTION; 3 PRAGMA EXCEPTION_INIT( ex_custom, -20001 ); 4 begin … Read more