DELIMITER $$
CREATE DEFINER=`axistms`#`localhost` FUNCTION `CheckDoc`(`orderId` INT) RETURNS int(11)
DETERMINISTIC
BEGIN
DECLARE lvl int;
SELECT count(`id`) INTO lvl FROM `com_carrier_portal_upload_documents` WHERE `orderID`= orderId;
RETURN lvl;
END$$
DELIMITER ;
any order id pass through orderId parameter its doesn't effect on where condition. Always return count of all records.How to fix this?
I'd suggest you to rename stored procedure argument, do something like this -
CREATE DEFINER = `axistms`#`localhost` FUNCTION `CheckDoc` (orderIdParam int)
RETURNS int(11)
DETERMINISTIC
BEGIN
DECLARE lvl int;
SELECT
COUNT(`id`) INTO lvl
FROM `com_carrier_portal_upload_documents`
WHERE `orderID` = orderIdParam;
RETURN lvl;
END
...because WHERE orderID= orderId can be equal to WHERE true.
Related
I make a this stored function to return the amount of invoices per customer:
delimiter //
CREATE FUNCTION function1(id INT) RETURNS INT READS SQL DATA
BEGIN
DECLARE result INT;
(SELECT count(invoice_id) INTO #result FROM invoices WHERE customer_id = #id);
RETURN #result;
END//
delimiter ;
but when I use it, returns 0:
SELECT function1(12) AS Q;
and the query returns 428 :
SELECT count(invoice_id) AS Q FROM invoices WHERE customer_id = 12;
I need to know what am I doing wrong.
#id is not the same as id
But it id better to use variable names _id to differentiate variables from column names
delimiter //
CREATE FUNCTION function1(_id INT) RETURNS INT READS SQL DATA
BEGIN
DECLARE result INT;
(SELECT count(invoice_id) INTO #result FROM invoices WHERE customer_id = _id);
RETURN #result;
END//
delimiter ;
CREATE TABLE ZAMOWIENIA( id_zamowienia INT PRIMARY KEY NOT NULL,
id_uzytkownika INT, kwota_zamowienia DECIMAL(10,2));
INSERT INTO
ZAMOWIENIA VALUES (1,1,20), (2,4 ,5), (3,3,100), (4,1,300),
(5,2,80), (6, 1,150);
SELECT * FROM ZAMOWIENIA;
select
count(id_uzytkownika) from ZAMOWIENIA WHERE id_uzytkownika=1;
DROP
FUNCTION AccountType;
DELIMITER //
CREATE FUNCTION AccountType(
in_id_uzytkownika INT) RETURNS VARCHAR(20) DETERMINISTIC
BEGIN
DECLARE account_type VARCHAR(20);
DECLARE in_id_uzytkownika INT;
DECLARE zamowienia INT;
select count(id_uzytkownika) AS zamowienia
from ZAMOWIENIA
WHERE id_uzytkownika=in_id_uzytkownika;
select zamowienia from zamowienia;
IF zamowienia >10 THEN
SET account_type = 'BRONZE';
END IF;
IF zamowienia >30 THEN
SET account_type = 'SILVER';
END IF;
IF zamowienia >60 THEN
SET account_type = 'GOLD';
END IF;
return account_type;
END // DELIMITER ;
If you want to set a variable to the result of a SELECT query, you need to use SELECT ... INTO variable, not SELECT ... AS variable. Your function is trying to return the result of the SELECT query because it doesn't store the result into a variable.
Or you can use SET statement, which is simpler when you're just setting a single variable.
So replace the two SELECT statements with:
SET zamowienia = (SELECT COUNT(*) FROM from ZAMOWIENIA
WHERE id_uzytkownika=in_id_uzytkownika);
Also, you shouldn't have DECLARE statements for the function parameters. Remove the line
DECLARE in_id_uzytkownika INT;
My question is about a function returning only one value but I still get this error, so What I'm supposed to get is average day between the order date and the shipped date, the query is doing that and returning me only one value which is the average. If I use just the SELECT statement outside the of the function I get one column/row answer of 8.4920.
How can I fix that please. Thanks.
DELIMITER //
DROP FUNCTION IF EXISTS OrderFulfilmel//
CREATE FUNCTION OrderFulfilmel(average int) RETURNS DOUBLE Deterministic
BEGIN
SELECT AVG(DATEDIFF(ShippedDate, OrderDate)) AS averageDay
FROM Orders;
END//
DELIMITER ;
You can try below
CREATE FUNCTION OrderFulfilmel(average int) RETURNS DOUBLE Deterministic
BEGIN
DECLARE var_name DECIMAL(10,2);
SET var_name = 0;
SELECT AVG(DATEDIFF(ShippedDate, OrderDate)) INTO var_name
FROM Orders;
RETURN var_name;
END
I don't understand why your function would have an argument. So, I'm thinking:
DELIMITER //
DROP FUNCTION IF EXISTS OrderFulfilmel//
CREATE FUNCTION OrderFulfilmel ()
RETURNS DOUBLE Deterministic
BEGIN
DECLARE #diff DOUBLE;
SELECT #diff := AVG(DATEDIFF(ShippedDate, OrderDate)) AS averageDay
FROM Orders;
RETURN #diff;
END//
DELIMITER ;
I trying to write MySql Function to return the count of child for one node and the I wrote this code
CREATE DEFINER=`root`#`localhost` FUNCTION `get_child_count`(`id` INT) RETURNS int(11)
READS SQL DATA
Begin
declare temp int(11);
SELECT count(*) into temp FROM tbl_photo_album where parent_id = id;
return temp;
End
and everytime I tried to run this function it come with nothing.
Possible alternative: Instad of select ... into..., try this:
set temp = (select count(*) from tbl_photo_album where parent_id = id);
try this one.
DELIMITER $$
CREATE DEFINER=`root`#`localhost` FUNCTION `get_child_count`(`id` INT) RETURNS int(11)
READS SQL DATA
Begin
declare temp int(11);
SELECT count(*) into temp FROM tbl_photo_album where parent_id = id;
return temp;
END$$
DELIMITER ;
select get_child_count(10); -- Pass Id for what you want result.
I have the following function:
DROP FUNCTION IF EXISTS saveTableRow;
DELIMITER $$
CREATE FUNCTION saveTableRow(adapter_id int(10), view_id int(10),name varchar(255)) RETURNS TINYINT(1)
BEGIN
DECLARE retOK TINYINT DEFAULT 0;
IF (SELECT COUNT(*) FROM `tables` WHERE `adapter_id`=adapter_id AND `view_id`=view_id AND `name`=name ) = 0 THEN
INSERT INTO `tables` (`adapter_id`,`view_id`,`name`) VALUES (adapter_id, view_id, name);
SET retOK = 1;
END IF;
RETURN retOK;
END;
$$
DELIMITER ;
When i call the function to insert a new row with
SELECT saveTableRow(3,1,'Text');
I get the result '0' and there is no new row saved.
It might be a name collision problem. The name of the column is the same with the name of you parameter. You need to change the name of your parameter that is different from the name of your column. eg,
DROP FUNCTION IF EXISTS saveTableRow;
DELIMITER $$
CREATE FUNCTION saveTableRow(
_adapter_id int(10),
_view_id int(10),
_name varchar(255))
RETURNS TINYINT(1)
BEGIN
DECLARE retOK TINYINT DEFAULT 0;
IF (SELECT COUNT(*)
FROM `tables`
WHERE `adapter_id`=_adapter_id AND
`view_id`=_view_id AND
`name`=_name ) = 0 THEN
INSERT INTO `tables` (`adapter_id`,`view_id`,`name`)
VALUES (_adapter_id, _view_id, _name);
SET retOK = 1;
END IF;
RETURN retOK;
END;
$$
DELIMITER ;
change the if as follows as try please:
IF ((SELECT COUNT(*) FROM `tables` WHERE `adapter_id`=adapter_id AND `view_id`=view_id AND `name`=name ) < 1)