i am trying to write a stored procedure that will print the error message first and then rollback
i tried this but this dose not work
i am able to rollback it but in case of error it dose not print the error message
DELIMITER
CREATE PROCEDURE transaction_sp ()
BEGIN
DECLARE exit handler for sqlexception
BEGIN
-- ERROR
--------------------------------------------------------------------------------------
select "error message '%s' and errorno '%d'"------- this part in not working
--------------------------------------------------------------------------------------
ROLLBACK;
END;
DECLARE exit handler for sqlwarning
BEGIN
-- WARNING
--------------------------------------------------------------------------------------
select "warning message '%s' and errorno '%d'"------- this part in not working
--------------------------------------------------------------------------------------
ROLLBACK;
END;
START TRANSACTION;
-- ADD option 5
INSERT INTO product_option(product_id,option_id,required) VALUES(insertedProductID,5,0);
SET poid = (SELECT LAST_INSERT_ID());
INSERT INTO product_option_value(product_option_id,product_id,option_id,option_value_id,quantity,subtract,price,pr ice_prefix,points,points_prefix,weight,weight_prefix) VALUES(poid,insertedProductID,5,50,0,0,4.99,'+',0,'+',0,'+');
-- ADD option 12
INSERT INTO product_option(product_id,option_id,required) VALUES(insertedProductID,12,1);
-- ADD option 13
INSERT INTO product_option(product_id,option_id,required) VALUES(insertedProductID,13,0);
COMMIT;
END
$$
so how can i achieve it with this stored procedure
To trap non-fatal errors in a called stored procedure, the called procedure must have some way to communicate back to the calling procedure that an error has occurred. To do this, pass a value back via the RETURN statement, or use an OUTPUT parameter.
Description ¶ Instead, use mysql_error() to retrieve the error text. Note that this function only returns the error text from the most recently executed MySQL function (not including mysql_error() and mysql_errno()), so if you want to use it, make sure you check the value before calling another MySQL function.
this worked for me
DELIMITER
CREATE PROCEDURE transaction_sp ()
BEGIN
DECLARE exit handler for sqlexception
BEGIN
-- ERROR
--------------------------------------------------------------------------------------
--select "error message '%s' and errorno '%d'"------- this part in not working
--------------------------------------------------------------------------------------
GET DIAGNOSTICS CONDITION 1
@p1 = RETURNED_SQLSTATE, @p2 = MESSAGE_TEXT;
SELECT @p1 as RETURNED_SQLSTATE , @p2 as MESSAGE_TEXT;
ROLLBACK;
END;
DECLARE exit handler for sqlwarning
BEGIN
-- WARNING
--------------------------------------------------------------------------------------
-- select "warning message '%s' and errorno '%d'"------- this part in not working
--------------------------------------------------------------------------------------
GET DIAGNOSTICS CONDITION 1
@p1 = RETURNED_SQLSTATE, @p2 = MESSAGE_TEXT;
SELECT @p1 as RETURNED_SQLSTATE , @p2 as MESSAGE_TEXT;
ROLLBACK;
END;
START TRANSACTION;
-- ADD option 5
INSERT INTO product_option(product_id,option_id,required) VALUES(insertedProductID,5,0);
SET poid = (SELECT LAST_INSERT_ID());
INSERT INTO product_option_value(product_option_id,product_id,option_id,option_value_id,quantity,subtract,price,pr ice_prefix,points,points_prefix,weight,weight_prefix) VALUES(poid,insertedProductID,5,50,0,0,4.99,'+',0,'+',0,'+');
-- ADD option 12
INSERT INTO product_option(product_id,option_id,required) VALUES(insertedProductID,12,1);
-- ADD option 13
INSERT INTO product_option(product_id,option_id,required) VALUES(insertedProductID,13,0);
COMMIT;
END
$$
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