This MySQL function should generate a check digit using Luhn algorithm. Given the number 345722 the function should return 3. It returns 6 which is wrong. drop function if exists luhn; delimiter // create function luhn(myNum varchar(20)) returns varchar(1) sql…
I created test function with the proper characteristic DETERMINISTIC as shown below because it always produces the same result 3 according to the doc: CREATE FUNCTION test() RETURNS INT DETERMINISTIC -- Here RETURN 3; And, I also created test function…
I have an sql file containing, say, "INSERT INTO mytable (ID, Date) VALUES (1, datetime.date(2023, 2, 22));" How do I create a table that will accept this? More explicitly, in "CREATE TABLE mytable(ID INT NOT NULL, Date ???)) ENGINE=INNODB;" what…
I'm using xampp with phpMyAdmin to manage a MySql database. When creating a function I got a "No Return Found" error, so I stripped down the function to narrow the origin of the error I got to the simplest case…