Define procedure:
DELIMITER $$
CREATE PROCEDURE SP_Reporting(IN tablename VARCHAR(20))
proc_label:BEGIN
IF tablename IS NULL THEN
SELECT 'Null detect';
LEAVE proc_label;
END IF;
SELECT 'after';
END;
$$
DELIMITER ;
Call Procedure:
CALL SP_Reporting();
Error :
ERROR 1318 (42000): Incorrect number of arguments for PROCEDURE
cds.SP_Reporting ; expected 1, got 0
How pass var by default like SP_Reporting(IN tablename = 'default value' VARCHAR(20))
When you are making your stored procedure, you can assign a value to your input, so there is no need to pass parameters while you are calling the proc.
We usually assign NULL and for making parameters optional, we use this method.
tablename VARCHAR(20) = NULL
Your complete script:
DELIMITER $$
CREATE PROCEDURE SP_Reporting(IN tablename VARCHAR(20) = NULL)
proc_label:BEGIN
IF tablename IS NULL THEN
SELECT 'Null detect';
LEAVE proc_label;
END IF;
SELECT 'after';
END;
$$
DELIMITER ;
EDIT
MySQL is not accepting optional parameters. So one way is to pass NULL value in your stored procedure and check it with IF statement inside your proc.
DELIMITER $$
CREATE PROCEDURE SP_Reporting(IN tablename VARCHAR(20))
proc_label:BEGIN
IF tablename IS NULL THEN
-- Do something;
ELSE
-- Do something else;
END IF;
END;
$$
DELIMITER ;
You have to pass the table name in the procedure call statement like:
CALL SP_Reporting(table_name);
you can't pass default in call statement.
You can assign default value before calling the procedure.
or use OUT instead of IN as a parameter.
you miss the parameter :tablename
you should like this :
call SP_Reporting('any varchar')
or
call SP_Reporting(null)
Related
I have create MySQL procedure having multiple IN parameters. I want to call procedure with few parameters but when I leave other fields blank it shows this error:
DELIMITER $$
CREATE DEFINER=itzakeed_akeed#localhost PROCEDURE ApiKez(
IN Choice VARCHAR(100),
IN ValidKey VARCHAR(100),
IN azid INT(5),
IN amts FLOAT(50)
)
BEGIN
DECLARE GetKey VARCHAR(100);
DECLARE Balance FLOAT;
CASE WHEN Choice='KeyCheck' THEN
SELECT COUNT(id) INTO GetKey
FROM users
WHERE api_key=ValidKey;
if key is valid
IF GetKey=1 THEN
SELECT *
FROM users
WHERE key=ValidKey;
ELSE
SELECT 0;
END IF;
ELSE
SELECT "INVALID INPUT CHOICE";
END CASE;
END
$$
DELIMITER ;
No you cannot call a procedure with less parameters than what is required. However, you can pass null or empty strings and check if a parameter has a value from withing the stored procedure.
Following is my code of MySQL Stored Function.
DELIMITER $$
USE `mac_db`$$
DROP FUNCTION IF EXISTS `moving_average`$$
CREATE DEFINER=`root`#`localhost` FUNCTION `moving_average`(`table_name` VARCHAR(255),`column_name` VARCHAR(255),`order_column` VARCHAR(255),`row_cnt` INT) RETURNS DOUBLE
DETERMINISTIC
BEGIN DECLARE result_avg DOUBLE DEFAULT 0;
SELECT AVG(`column_name`) INTO result_avg FROM table_name ORDER BY order_column DESC LIMIT row_cnt;
RETURN result_avg;
END$$
DELIMITER ;
I am calling the function as follows:
SELECT moving_average('my_table','my_col','id',4);
I am getting the following error.
Table 'mac_db.table_name' doesn't exist
Please help to resolve the error.
table_name is a parameter not the name of table.
replace you proc parameter as below:
DELIMITER $$
USE mac_db$$
DROP FUNCTION IF EXISTS moving_average$$
CREATE DEFINER=root#localhost FUNCTION moving_average(#table_name VARCHAR(255),#column_name VARCHAR(255),#order_column VARCHAR(255),#row_cnt INT) RETURNS DOUBLE
DETERMINISTIC
BEGIN DECLARE result_avg DOUBLE DEFAULT 0;
SELECT AVG(#column_name) INTO result_avg FROM #table_name ORDER BY #order_column DESC LIMIT #row_cnt;
RETURN result_avg;
END$$
DELIMITER ;
enter image description hereget legside from binary
I have tried using stored procedure with recursive call. i need to display relevant name based on emp_name based on leg1
but it showing error like #1414 - OUT or INOUT argument 2 for routine sample.getVolume is not a variable or NEW pseudo-variable in BEFORE trigger
Here is my code,
DELIMITER $$
CREATE PROCEDURE getVolume( IN param_name VARCHAR(255), OUT result VARCHAR(255 ))
BEGIN
SELECT val INTO result FROM employee WHERE emp_name = param_name ;
IF result IS NULL THEN
select result;
ELSE
CALL getVolume(result, '');
END IF;
END $$
DELIMITER ;
SET ##GLOBAL.max_sp_recursion_depth = 255;
SET ##session.max_sp_recursion_depth = 255;
call getVolume('new', #result);
select #result;
The answer of #Shadow is correct. Here a practical example that can help you:
DELIMITER //
DROP TABLE IF EXISTS `employee`//
DROP PROCEDURE IF EXISTS `getVolume`//
CREATE TABLE `employee` (
`emp_name` VARCHAR(255),
`val` VARCHAR(255)
)//
INSERT INTO `employee` (`emp_name`, `val`)
VALUES
('demo', 'new'),
('new', 'd.new'),
('d.new', 'view'),
('view', 'hello'),
('hello', NULL)
//
CREATE PROCEDURE `getVolume`(
IN `param_name` VARCHAR(255),
OUT `result` VARCHAR(255)
)
BEGIN
DECLARE `next_param_name` VARCHAR(255);
SELECT `val` INTO `next_param_name`
FROM `employee`
WHERE `emp_name` = `param_name`;
IF `next_param_name` IS NULL THEN
SET `result` := `param_name`;
ELSE
-- CALL `getVolume`(`result`, '');
CALL `getVolume`(`next_param_name`, `result`);
-- SET `result` := CONCAT(`param_name`, ',', IFNULL(`result`, ''));
END IF;
END//
DELIMITER ;
SQL Fiddle demo
The problem is that when you call getResult() within getresult, you pass an empty string constant as a parameter:
CALL getVolume(result, '');
Declare a variable instead and pass that as a parameter. After the getVolume call do not forget to concatenate what is returned by getVolume to the result variable with a separator character. Are you sure that 255 characters will be enough to hold all values?
I am getting an error in MySQL that is driving me crazy and I just can't figure out what's wrong. I makes the following call:
CALL ProfileUpdateProgress(107)
MySQL returns the error: "Incorrect number of arguments for FUNCTION ccms.fnGetProfileAlbumsPhotoCount; expected 2, got 1"
Now, as you can see in the code below, the call being made to that function is: fnGetProfileAlbumsPhotoCount(_profileId, profileUserId)
That's two arguments isn't it?? Why is it erroring??
I'm going mad!!
Database procs:
DELIMITER $$
DROP PROCEDURE IF EXISTS `ProfileUpdateProgress` $$
CREATE DEFINER=`root`#`%` PROCEDURE `ProfileUpdateProgress`(
IN _profileId integer
)
BEGIN
SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED;
CALL ProfileUpdateProfileProgress(_profileId);
END $$
DELIMITER ;
which in turn calls:
DELIMITER $$
DROP PROCEDURE IF EXISTS `ProfileUpdateProfileProgress` $$
CREATE DEFINER=`root`#`%` PROCEDURE `ProfileUpdateProfileProgress`(IN _profileId int)
BEGIN
-- Declarations here
SELECT profileEyes, profileSex, profileHair, profileBustBand, profileBustCup, profileBirthCountry, profileProfession , profileAbout,
profileBiography, fnGetProfilePhoto(_profileId, null) AS profilePhoto, fnGetProfileAlbumsPhotoCount(_profileId, profileUserId) AS albumPhotoCount,
userAllowMultipleProfiles, profileIsPrimary, fnUserGetChildrenProfileCount(userId) AS ownerProfileCount
INTO _profileEyes, _profileSex, _profileHair, _profileBustBand, _profileBustCup, _profileBirthCountry, _profileProfession,
_profileAbout, _profileBiography, _profilePhoto, _albumPhotoCount, _userAllowMultipleProfiles, _profileIsPrimary,
_ownerProfileCount
FROM profile
INNER JOIN user
ON profileUserId = userId
WHERE profileId = _profileId;
-- Other irrelevant code here
END $$
DELIMITER ;
and the function being called that errors looks like:
DELIMITER $$
DROP FUNCTION IF EXISTS `fnGetProfileAlbumsPhotoCount` $$
CREATE DEFINER=`root`#`%` FUNCTION `fnGetProfileAlbumsPhotoCount`(
_profileId int,
_userId int
) RETURNS int(11)
BEGIN
DECLARE outProfileAlbumsPhotoCount int DEFAULT 0;
-- Irrelvant Code
RETURN outProfileAlbumsPhotoCount;
END $$
DELIMITER ;
Ah finally solved it. Another function called fnUserGetChildrenProfileCount in the select columns was the culprit as it too had a call to the fnGetProfileAlbumsPhotoCount() function and THAT call only had one argument, i.e. missing the second one.
I am trying to create a mysql stored procedure, but I get this error:
Script line: 2 Failed to CREATE PROCEDURE proc_test_bideep
The stored procedure code is:
DELIMITER $$
DROP PROCEDURE IF EXISTS `commun`.`insert_categorie` $$
CREATE PROCEDURE `commun`.`insert_categorie` (id_mere INT,
lib_categ VARCHAR(50),
id_categ_sup INT ,
categ_authInstantBuy INT)
BEGIN
SET #bg_mere := (SELECT categ_bg FROM categ_basic WHERE categ_id = id_mere);
#bg_mere+2,categ_level_bideep,categ_statut,categ_adult,categ_authSmallBid,categ_authBid,categ_authInstantBuy);
SELECT '1' AS code_retour; END IF;
ecetera.........
END $$
DELIMITER ;
a) You need to DECLARE any variables on the first lines of the procedure, including their datatype:
DECLARE bg_mere INT;
b) To fetch a value from the database into a variable, you use SELECT ... INTO syntax:
SELECT categ_bg INTO bg_mere FROM categ_basic WHERE categ_basic.categ_id = id_mere;
c) You have an END IF without the corresponding IF.
d) The closing END needs a semicolon (not BEGIN though), only then do you need a delimiter to finish the entire statement, and finally you should reset the delimiter back to normal:
BEGIN
# body of the stored procedure goes here
END;
$$
DELIMITER ;
Your parameters are missing the keyword IN such as: ...(IN id_mere INT, IN lib_categ ...). Also, you need to configure your OUT variable for #bg_mere in the initial parameter list such as (IN xxx, ..., OUT bg_mere VARCHAR/INT/WHATEVER).