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John Peter
Pune, Maharashtra, India
How to find factorial with mysql recursive stored procedure with example
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How to create recursion in Mysql Procedures? 
Mysql version should be >= 5.
 
Have to set system parameters. This means putting the recursion count limit.
SET @@GLOBAL.max_sp_recursion_depth = 255;
SET @@session.max_sp_recursion_depth = 255;
 
Change thread_stack size in in.cnf file
thread_stack = 64M
or
thread_stack = 128M
Example Factorial Program with Recursive Algorithm
DROP PROCEDURE IF EXISTS find_fact;
DROP PROCEDURE IF EXISTS factorial;

DELIMITER $$
CREATE PROCEDURE find_fact(IN n INT)
BEGIN
    SET @@GLOBAL.max_sp_recursion_depth = 255;
    SET @@session.max_sp_recursion_depth = 255;
 
    CALL factorial(n,@fact);
    
    SELECT @fact;
END
$$

DELIMITER $$
CREATE PROCEDURE factorial(IN n INT,OUT fact INT)
BEGIN
    IF n = 1 THEN
        SET fact := 1;
    ELSE
        CALL factorial(n-1,fact);
        SET fact := n * fact;
    END IF;
END
$$
Calling Procedure & Output 
CALL find_fact(5);

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