Oracle中@@ Error的等效项是什么

Question

IF @@ERROR <> 0 GOTO ProcError

I have the above code in SQL Server.I am unable to find an oracle equivalent for @@Error.

How can this be achieved?

Answer 1

I agree with @Kfinity's offering of an exception handler to trap an error raised by a SQL statement (or PL/SQL statement for that matter).

It might also be helpful to know that the direct correlation of @@Error in PL/SQL is SQLCODE. If non-zero (which it only is when invoked from within an exception handler) it gives you the error code. If 0, well, then....no error!

Answer 2

It sounds like you're trying to do error handling. In PL/SQL it usually looks like this:

BEGIN
  ...do something...
EXCEPTION WHEN NO_DATA_FOUND THEN -- check for a specific exception
  DBMS_OUTPUT.put_line('No data found exception caught');
WHEN OTHERS THEN -- catch any exception
  DBMS_OUTPUT.put_line('Unexpected error');
  DBMS_OUTPUT.put_line (DBMS_UTILITY.format_error_backtrace); 
  RAISE; -- re-raise the exception after logging it
END;

You can either do this for your entire PL/SQL block that you're currently working with (function, procedure, etc), or you can wrap a single statement in an anonymous PL/SQL block with an exception handler if you want more of a TRY..CATCH functionality.