Solved

PL/SQL Stored Procedure EXCEPTION not working

Posted on 2008-10-12
3
1,279 Views
Last Modified: 2013-12-18
Hi Experts,

I have a stored procedure I am writing for an on-line class and cannot figure out what I am doing wrong. I need the procedure to write to an error table "order_errors" for any error that occurs while trying to execute it.

The package is called "Process_Orders" and the procedure is called "Add_Order". There are three parameters for Add_Order: cno, eno, and received. A call with valid parameters works fine, but a call with "bad data" text where a date was expected and so on does not trigger the exception handler.

Here is the output from SQL PLUS when the number 23 is entered where a date should be:
SQL> execute Process_Orders.Add_Order(12,14,'23');
BEGIN Process_Orders.Add_Order(12,14,'23'); END;

                                                         
ERROR at line 1:
ORA-01840: input value not long enough for date format
ORA-06512: at line 1
CREATE OR REPLACE PACKAGE Process_Orders AS
	PROCEDURE Add_Order(p_cno IN orders.cno%TYPE,
			p_eno IN orders.eno%TYPE,
			p_received IN DATE);
			p_creation_date DATE;
			p_last_update_date DATE;
			p_created_by VARCHAR2(10);
			p_last_update_by VARCHAR2(10);	
			p_date DATE;
			error_message VARCHAR2(100);
END Process_Orders;
/
show errors
set echo on
 
 
CREATE OR REPLACE PACKAGE BODY Process_Orders AS
  -- Add a new order for the specified class.
  -- Order_number_seq should be used to populate the order number (ONO) column.
 
 
	PROCEDURE Add_Order(p_cno IN orders.cno%TYPE,
			p_eno IN orders.eno%TYPE,
			p_received IN DATE) AS
 
	BEGIN
  	INSERT INTO orders (ono,cno,eno,received,creation_date,created_by,last_update_date,last_update_by)
  	SELECT Order_number_seq.NextVal,p_cno,p_eno,NVL(p_received,CURRENT_DATE),CURRENT_DATE,
	USER,CURRENT_DATE,USER FROM DUAL;
  	COMMIT;
 
 	EXCEPTION
	WHEN OTHERS THEN
	error_message := sqlerrm(sqlcode);
	DBMS_OUTPUT.PUT_LINE (error_message);
	INSERT INTO order_errors (ono,transaction_date,message) 
	VALUES (Order_number_seq.NextVal,CURRENT_DATE,error_message);
	COMMIT;
	END Add_Order;
 
END Process_Orders;
/
show errors

Open in new window

0
Comment
Question by:k_smee
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
3 Comments
 
LVL 143

Accepted Solution

by:
Guy Hengel [angelIII / a3] earned 125 total points
ID: 22698840
the problem is that the error occurs even before you enter the procedure.
the value '23' cannot be converted to date, hence the error.

if you want the procedure to handle the error:

CREATE OR REPLACE PACKAGE Process_Orders AS
      PROCEDURE Add_Order(p_cno IN orders.cno%TYPE,
                  p_eno IN orders.eno%TYPE,
                  p_received IN VARCHAR2);

Open in new window

0
 

Author Comment

by:k_smee
ID: 22698879
Thank you so much!  I see what you mean. So  p_received was the issue here since it expected a date you changed it to VARCHAR2 os it would accept pretty much anything
0
 

Author Closing Comment

by:k_smee
ID: 31505500
Thanks for the quick response! This assignment is killing me..
0

Featured Post

Free Tool: Site Down Detector

Helpful to verify reports of your own downtime, or to double check a downed website you are trying to access.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Cursors in Oracle: A cursor is used to process individual rows returned by database system for a query. In oracle every SQL statement executed by the oracle server has a private area. This area contains information about the SQL statement and the…
This post first appeared at Oracleinaction  (http://oracleinaction.com/undo-and-redo-in-oracle/)by Anju Garg (Myself). I  will demonstrate that undo for DML’s is stored both in undo tablespace and online redo logs. Then, we will analyze the reaso…
This video shows how to Export data from an Oracle database using the Datapump Export Utility.  The corresponding Datapump Import utility is also discussed and demonstrated.
This video shows how to copy an entire tablespace from one database to another database using Transportable Tablespace functionality.

749 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question