Convert into 10g so I will use procedure at DB but....

Question

My dears
Now I will convert My program from 6i to 10g and alot of procedure which it written in forms will be rewrite at db as a procedure
But I want to know how all command in procedure scucess then I make commit else I make rollback how I Know this
plz I want a way to make me sure that procedute work good
thanks

Answer 1

Hi,
You can assign an OUT-parameter the same way you assign any variable. Some ways include
:= operator
SELECT ... INTO
passing it as an OUT-parameter to another procedure
Here's a simple example: a procedure that changes the sal column in a table like scott.emp.
The calling program needs to know if a row was changed or not. (empno is the primary key, so, at most, only one row can be changed.)
If the row was not changed, then the calling program may need to know why: whether it was because there was no matching row in the table, or beacuse the sal was NULL.
Here's how you might write the procedure:
CREATE OR REPLACE PROCEDURE  change_sal
(     in_empno     IN     emp.empno%TYPE     -- id of employee
,     in_pct          IN     NUMBER          -- Percent inclease
,     out_status     OUT     NUMBER          -- 1=>it worked, 0=>no such emp, -1=>NULL sal
IS
     new_sal     emp.sal%TYPE;
BEGIN
     UPDATE        emp
     SET        sal = sal * in_pct / 100
     WHERE        empno = in_empno
     RETURNING  sal
     INTO        new_sal;
     IF  SQL%ROWCOUNT < 1
     THEN
          out_status := 0;     -- There was no employee with the given empno
     ELSIF  new_sal  IS NULL
     THEN
          out_status := -1;     -- Sal was NULL
     ELSE
          out_status := 1;     -- salary was changed
     END IF;
END     change_sal
SHOW ERRORS