Catch 'divide by zero' exception : Exception « PL SQL Programming « Oracle PL/SQL Tutorial

SQL> set serveroutput on
  2          Num_a NUMBER := 6;
  3          Num_b NUMBER;
  4  BEGIN
  5          Num_b := 0;
  6          Num_a := Num_a / Num_b;
  7          Num_b := 7;
  8          dbms_output.put_line(' Value of Num_b ' || Num_b);
 10          WHEN ZERO_DIVIDE
 11  THEN
 12                dbms_output.put_line('Trying to divide by zero');
 13                dbms_output.put_line(' Value of Num_a ' || Num_a);
 14                dbms_output.put_line(' Value of Num_b ' || Num_b);
 15  END;
 16  /
Trying to divide by zero
Value of Num_a 6
Value of Num_b 0

PL/SQL procedure successfully completed.


24.14.2.Types of more commonly used Exceptions
24.14.3.Exception Handling
24.14.4.The NULL Statement
24.14.5.ZERO_DIVIDE Exception
24.14.6.When the exception occurs, program control passes to the EXCEPTION block where the WHEN clause is examined for a matching exception.
24.14.7.Understanding Different Exception Types
24.14.8.DUP_VAL_ON_INDEX Exception
24.14.9.INVALID_NUMBER Exception
24.14.10.Catch 'divide by zero' exception
24.14.11.OTHERS Exception
24.14.12.Because OTHERS handles all exceptions, you must list it after any specific exceptions in your EXCEPTION block.
24.14.13.Declare variables in exception handler
24.14.14.Data not found exception
24.14.15.Too many rows exception