Question

I have a few SQL (Select/Update/Insert) syntax that I will run inside PL/SQL one after another

is there any way to check if each syntax completed correctly and if there is some error it will not halt the whole PL/SQL, it will just return “OK” or “Not OK” to a variable so I can use it with IF?

UPDATE

I came up with this function, but it dose not seems to work, it returns 0 all time!

create or replace
FUNCTION EXECUTE_SQL(
      V_SQL IN VARCHAR2 )
    RETURN NUMBER
  AS
    V_RESULTS NUMBER := 1;
  BEGIN
    BEGIN
      EXECUTE IMMEDIATE V_SQL;
    EXCEPTION
    WHEN OTHERS THEN
      -- the following line is just for debugging!
      dbms_output.put_line(SQLERRM);
      V_RESULTS:= 0;
    END;
    RETURN V_RESULTS;
  END EXECUTE_SQL;

what is wrong wit it (if any)!
cheers

Answer 1

if sql%rowcount > 0 then
   -- insert or update statement affected sql%rowcount rows
end if;

As for the correct syntax: if the syntax is wrong, it won’t even compile. If there’s a data consistency error (such as divide by 0 error, or primary key violation) an exception will be thrown. Such exception can be caught in exception handlers

In the exception handler, you can then check sqlerrm for more details:

 begin
    update t set x = ...
 exception when others then
    dbms_output.put_line(SQLERRM);
 end;

There are also a few predefined exceptions that you can check on:

 begin
           update t set x = ...
 exception
    when DUP_VAL_ON_INDEX
         -- primary key or unique key violation
    when OTHERS
         -- other kind of exception
  end;