--echo #
--echo # MDEV-10654 IN, OUT, INOUT parameters in CREATE FUNCTION
--echo #


--echo #
--echo # CREATE FUNCTION with IN, OUT, INOUT qualifiers
--echo # SHOW CREATE FUNCTION
--echo #

DELIMITER $$;
CREATE FUNCTION add_func(IN a INT, IN b INT, OUT c INT, INOUT d INT) RETURNS INT
BEGIN
  SET c= 100;
  SET d= d + 1;
  RETURN a + b;
END;
$$
DELIMITER ;$$

SHOW CREATE FUNCTION add_func;
DROP FUNCTION add_func;

--echo #
--echo # CREATE PROCEDURE with IN, OUT, INOUT qualifiers
--echo # SHOW CREATE PROCEDURE
--echo #

DELIMITER $$;
CREATE PROCEDURE add_proc(IN a INT, IN b INT, INOUT c INT, OUT d INT)
BEGIN
  SET d= a + b + c + d;
END;
$$
DELIMITER ;$$

SHOW CREATE PROCEDURE add_proc;
DROP PROCEDURE add_proc;

--echo #
--echo # Call function from SELECT query
--echo # SELECT > FUNCTION(IN)
--echo #

DELIMITER $$;
CREATE FUNCTION add_func2(IN a INT, IN b INT) RETURNS INT
BEGIN
  RETURN a + b;
END;
$$
DELIMITER ;$$

SET @a = 2;
SET @b = 3;
SELECT add_func2(@a, @b);
DROP FUNCTION add_func2;

--echo #
--echo # Call function from SELECT query
--echo # SELECT > FUNCTION(OUT)
--echo #

DELIMITER $$;
CREATE FUNCTION add_func3(IN a INT, IN b INT, OUT c INT) RETURNS INT
BEGIN
  SET c = 100;
  RETURN a + b;
END;
$$
DELIMITER ;$$

SET @a = 2;
SET @b = 3;
SET @c = 0;
SET @res= add_func3(@a, @b, @c);
SELECT @res, @a, @b, @c;
--error ER_SF_OUT_INOUT_ARG_NOT_ALLOWED
SELECT add_func3(@a, @b, @c);
DROP FUNCTION add_func3;

--echo #
--echo # Call function from SELECT query
--echo # SELECT > FUNCTION(INOUT)
--echo #

DELIMITER $$;
CREATE FUNCTION add_func4(IN a INT, IN b INT, OUT c INT, INOUT d INT) RETURNS INT
BEGIN
  SET c = 100;
  SET d = d + 1;
  RETURN a + b;
END;
$$
DELIMITER ;$$

SET @a = 2;
SET @b = 3;
SET @c = 0;
SET @d = 9;
SET @res= add_func4(@a, @b, @c, @d);
SELECT @res, @a, @b, @c, @d;
--error ER_SF_OUT_INOUT_ARG_NOT_ALLOWED
SELECT add_func4(@a, @b, @c, @d);
DROP FUNCTION add_func4;

--echo #
--echo # Call from procedure
--echo # PROCEDURE(OUT) > FUNCTION(IN)
--echo #

DELIMITER $$;
CREATE FUNCTION add_func2(IN a INT, IN b INT) RETURNS INT
BEGIN
  RETURN a + b;
END;
$$
CREATE PROCEDURE add_proc2(IN a INT, IN b INT, OUT c INT)
BEGIN
  SET c = add_func2(a, b);
END;
$$
DELIMITER ;$$

SET @a = 2;
SET @b = 3;
SET @c = 0;
CALL add_proc2(@a, @b, @c);
SELECT @a, @b, @c;
DROP FUNCTION add_func2;
DROP PROCEDURE add_proc2;

--echo #
--echo # Call from procedure
--echo # PROCEDURE(OUT) > FUNCTION(OUT)
--echo #

DELIMITER $$;
CREATE FUNCTION add_func3(IN a INT, IN b INT, OUT c INT) RETURNS INT
BEGIN
  SET c = 100;
  RETURN a + b;
END;
$$
CREATE PROCEDURE add_proc3(IN a INT, IN b INT, OUT c INT)
BEGIN
  DECLARE res INT;
  SET res = add_func3(a, b, c);
END;
$$
DELIMITER ;$$

SET @a = 2;
SET @b = 3;
SET @c = 0;
CALL add_proc3(@a, @b, @c);
SELECT @a, @b, @c;
DROP FUNCTION add_func3;
DROP PROCEDURE add_proc3;

--echo #
--echo # Call from procedure
--echo # PROCEDURE(OUT) > FUNCTION(INOUT)
--echo #

DELIMITER $$;
CREATE FUNCTION add_func4(IN a INT, IN b INT, OUT c INT, INOUT d INT) RETURNS INT
BEGIN
  SET c = 100;
  SET d = d + 1;
  RETURN a + b;
END;
$$
CREATE PROCEDURE add_proc4(IN a INT, IN b INT, OUT res INT)
BEGIN
  DECLARE c INT;
  DECLARE d INT;
  SET d = 30;
  SET res = add_func4(a, b, c, d);
  SET res = c + d;
END;
$$
DELIMITER ;$$

SET @a = 2;
SET @b = 3;
SET @res = 0;
CALL add_proc4(@a, @b, @res);
SELECT @a, @b, @res;
DROP FUNCTION add_func4;
DROP PROCEDURE add_proc4;

--echo #
--echo # Call from procedure
--echo # PROCEDURE(OUT) > PROCEDURE(OUT)
--echo #

DELIMITER $$;
CREATE PROCEDURE add_proc(IN a INT, IN b INT, OUT c INT)
BEGIN
  SET c = a + b;
END;
$$
CREATE PROCEDURE test_proc1(IN a INT, IN b INT, OUT c INT)
BEGIN
  CALL add_proc(a, b, c);
END;
$$
DELIMITER ;$$

SET @a = 2;
SET @b = 3;
SET @c = 0;
CALL test_proc1(@a, @b, @c);
SELECT @a, @b, @c;
DROP PROCEDURE add_proc;
DROP PROCEDURE test_proc1;

--echo #
--echo # Argument's order change
--echo # PROCEDURE(a IN, b IN, c OUT) > FUNCTION(b IN, a IN, c OUT)
--echo #

DELIMITER $$;
CREATE FUNCTION func_sub(IN b INT, IN a INT, OUT c INT) RETURNS INT
BEGIN
  DECLARE res INT;
  SET c = a - b;
  SET res = a;
  RETURN res;
END;
$$
CREATE PROCEDURE proc_main(IN a INT, IN b INT, OUT c INT)
BEGIN
  DECLARE res INT;
  SET res = func_sub(b, a, c);
END;
$$
DELIMITER ;$$

SET @a = 2;
SET @b = 3;
SET @c = 0;
CALL proc_main(@a, @b, @c);
SELECT @a, @b, @c;
DROP FUNCTION func_sub;
DROP PROCEDURE proc_main;

--echo #
--echo # Argument's order change
--echo # PROCEDURE(a IN, b IN, c OUT) > FUNCTION(c OUT, b IN, a IN)
--echo #

DELIMITER $$;
CREATE FUNCTION func_sub(OUT c INT, IN b INT, IN a INT) RETURNS INT
BEGIN
  DECLARE res INT;
  SET c = a - b;
  SET res = a;
  RETURN res;
END;
$$
CREATE PROCEDURE proc_main(IN a INT, IN b INT, OUT c INT)
BEGIN
  DECLARE res INT;
  SET res = func_sub(c, b, a);
END;
$$
DELIMITER ;$$

SET @a = 2;
SET @b = 3;
SET @c = 0;
CALL proc_main(@a, @b, @c);
SELECT @a, @b, @c;
DROP FUNCTION func_sub;
DROP PROCEDURE proc_main;

--echo #
--echo # Argument's order change
--echo # PROCEDURE(a IN, b IN, c INOUT, d OUT) > FUNCTION(d OUT, a IN, b IN, c INOUT)
--echo #

DELIMITER $$;
CREATE FUNCTION func_sub(OUT d INT, IN a INT, IN b INT, INOUT c INT) RETURNS INT
BEGIN
  SET c = c + 6;
  SET d = 10;
  RETURN a - b;
END;
$$
CREATE PROCEDURE proc_main(IN a INT, IN b INT, INOUT c INT, OUT d INT)
BEGIN
  DECLARE res INT;
  SET res = func_sub(d, a, b, c);
  SET d = d + c + res;
END;
$$
DELIMITER ;$$

SET @a = 15;
SET @b = 5;
SET @c = 4;
SET @d= 0;
CALL proc_main(@a, @b, @c, @d);
SELECT @a, @b, @c, @d;
DROP FUNCTION func_sub;
DROP PROCEDURE proc_main;

--echo #
--echo # Argument's order change
--echo # PROCEDURE(IN a INT, IN b INT, INOUT c INT, OUT d INT) > FUNCTION1(c INOUT INT, IN b INT) > FUNCTION2(d OUT INT, IN a INT)
--echo #

DELIMITER $$;
CREATE FUNCTION func_sub1(INOUT c INT, IN b INT) RETURNS INT
BEGIN
  SET c = c + b;
  RETURN 0;
END;
$$
CREATE FUNCTION func_sub2(OUT d INT, IN a INT) RETURNS INT
BEGIN
  SET d = 5 + a;
  RETURN 0;
END;
$$
CREATE PROCEDURE proc_main(IN a INT, IN b INT, INOUT c INT, OUT d INT)
BEGIN
  DECLARE res1 INT;
  DECLARE res2 INT;
  SET res1 = func_sub1(c, b);
  SET res2 = func_sub2(d, a);
  SET d = d + c;
END;
$$
DELIMITER ;$$

SET @a = 15;
SET @b = 6;
SET @c = 4;
SET @d= 0;
CALL proc_main(@a, @b, @c, @d);
SELECT @a, @b, @c, @d;
DROP FUNCTION func_sub1;
DROP FUNCTION func_sub2;
DROP PROCEDURE proc_main;

--echo #
--echo # Argument's order change
--echo # FUNCTION1(a IN, b IN) > FUNCTION2(b IN, c OUT, a IN)
--echo #

DELIMITER $$;
CREATE FUNCTION func_sub(IN b INT, OUT c INT, IN a INT) RETURNS INT
BEGIN
  SET c = 100;
  RETURN a + b;
END;
$$
CREATE FUNCTION func_main(IN a INT, IN b INT) RETURNS INT
BEGIN
  DECLARE c INT;
  DECLARE res INT;
  SET res = func_sub(b, c, a);
  RETURN res + c;
END;
$$
DELIMITER ;$$

SET @a = 2;
SET @b = 3;
SELECT func_main(@a, @b);
DROP FUNCTION func_sub;
DROP FUNCTION func_main;

--echo #
--echo # Call procedure inside function
--echo # FUNCTION1(a IN, b IN) > PROCEDURE(a IN, b IN, c OUT)
--echo #

DELIMITER $$;
CREATE PROCEDURE proc_sub(IN a INT, IN b INT, OUT c INT)
BEGIN
  SET c = a + b;
END;
$$
CREATE FUNCTION func_main(IN b INT, IN a INT) RETURNS INT
BEGIN
  DECLARE c INT;
  CALL proc_sub(a, b, c);
  RETURN c;
END;
$$
DELIMITER ;$$

SET @a = 2;
SET @b = 3;
SELECT func_main(@a, @b);
DROP PROCEDURE proc_sub;
DROP FUNCTION func_main;

--echo #
--echo # Call procedure inside function
--echo # FUNCTION1(a IN, b IN) > PROCEDURE(a IN, b INOUT)
--echo #

DELIMITER $$;
CREATE PROCEDURE proc_sub(IN a INT, INOUT b INT)
BEGIN
  SET b = a + b;
END;
$$
CREATE FUNCTION func_main(IN b INT, IN a INT) RETURNS INT
BEGIN
  CALL proc_sub(a, b);
  RETURN b;
END;
$$
DELIMITER ;$$

SET @a = 2;
SET @b = 3;
SELECT func_main(@a, @b);
DROP PROCEDURE proc_sub;
DROP FUNCTION func_main;

--echo #
--echo # Call procedure inside function
--echo # FUNCTION1(a IN, b IN, c OUT) > PROCEDURE(a IN, b IN, c OUT)
--echo #

DELIMITER $$;
CREATE PROCEDURE proc_sub(IN a INT, IN b INT, OUT c INT)
BEGIN
  SET c = a + b;
END;
$$
CREATE FUNCTION func_main(IN b INT, IN a INT, OUT c INT) RETURNS INT
BEGIN
  DECLARE res INT;
  CALL proc_sub(a, b, c);
  RETURN 0;
END; 
$$
DELIMITER ;$$

SET @a = 2;
SET @b = 3;
SET @c = 0;
DO func_main(@a, @b, @c);
SELECT @a, @b, @c;
--error ER_SF_OUT_INOUT_ARG_NOT_ALLOWED
SELECT func_main(@a, @b, @c);
DROP PROCEDURE proc_sub;
DROP FUNCTION func_main;

--echo #
--echo # Call function from UPDATE query
--echo # UPDATE <table> SET <column> = FUNCTION(a IN)
--echo #

CREATE TABLE Persons (
    ID int,
    Name varchar(255),
    Age int
);
INSERT INTO Persons VALUES (1, 'AAA', 10);
INSERT INTO Persons VALUES (2, 'BBB', 20);
INSERT INTO Persons VALUES (3, 'CCC', 30);

DELIMITER $$;
CREATE FUNCTION func(IN a INT) RETURNS INT
BEGIN
  RETURN a * 10;
END;
$$
DELIMITER ;$$

SET @a = 5;
UPDATE Persons SET Age = func(@a) WHERE ID = 1;
SELECT * FROM Persons;
DROP TABLE Persons;
DROP FUNCTION func;

--echo #
--echo # Call function from UPDATE query
--echo # UPDATE <table> SET <column> = FUNCTION(a OUT)
--echo #

CREATE TABLE Persons (
    ID int,
    Name varchar(255),
    Age int
);
INSERT INTO Persons VALUES (1, 'AAA', 10);
INSERT INTO Persons VALUES (2, 'BBB', 20);
INSERT INTO Persons VALUES (3, 'CCC', 30);

DELIMITER $$;
CREATE FUNCTION func(OUT a INT) RETURNS INT
BEGIN
  SET a = 5;
  RETURN 80;
END;
$$
DELIMITER ;$$

SET @a = 0;
--error ER_SF_OUT_INOUT_ARG_NOT_ALLOWED
UPDATE Persons SET Age = func(@a) WHERE ID = 1;
DROP TABLE Persons;
DROP FUNCTION func;

--echo #
--echo # Call function from INSERT query
--echo # INSERT INTO <table> SELECT <val1>, <val2>, FUNCTION(a IN)
--echo #

CREATE TABLE Persons (
    ID int,
    Name varchar(255),
    Age int
);
INSERT INTO Persons VALUES (1, 'AAA', 10);
INSERT INTO Persons VALUES (2, 'BBB', 20);
INSERT INTO Persons VALUES (3, 'CCC', 30);

DELIMITER $$;
CREATE FUNCTION func(IN a INT) RETURNS INT
BEGIN
  RETURN a * 10;
END;
$$
DELIMITER ;$$

SET @a = 4;
INSERT INTO Persons SELECT 4, 'DDD', func(@a);
SELECT * FROM Persons;
DROP TABLE Persons;
DROP FUNCTION func;

--echo #
--echo # Call function from INSERT query
--echo # INSERT INTO <table> SELECT <val1>, <val2>, FUNCTION(a OUT)
--echo #

CREATE TABLE Persons (
    ID int,
    Name varchar(255),
    Age int
);
INSERT INTO Persons VALUES (1, 'AAA', 10);
INSERT INTO Persons VALUES (2, 'BBB', 20);
INSERT INTO Persons VALUES (3, 'CCC', 30);

DELIMITER $$;
CREATE FUNCTION func(OUT a INT) RETURNS INT
BEGIN
  SET a = 45;
  RETURN 40;
END;
$$
DELIMITER ;$$

SELECT * FROM Persons;
SET @a = 0;
--error ER_SF_OUT_INOUT_ARG_NOT_ALLOWED
INSERT INTO Persons SELECT 5, 'EEE', func(@a);
DROP TABLE Persons;
DROP FUNCTION func;

--echo #
--echo # Call function from DELETE query
--echo # DELETE FROM <table> WHERE <column> = FUNCTION(a IN)
--echo #

CREATE TABLE Persons (
    ID int,
    Name varchar(255),
    Age int
);
INSERT INTO Persons VALUES (1, 'AAA', 10);
INSERT INTO Persons VALUES (2, 'BBB', 20);
INSERT INTO Persons VALUES (3, 'CCC', 30);
INSERT INTO Persons VALUES (4, 'DDD', 40);

DELIMITER $$;
CREATE FUNCTION func(IN a INT) RETURNS INT
BEGIN
  RETURN a;
END;
$$
DELIMITER ;$$

SELECT * FROM Persons;
SET @a = 4;
DELETE FROM Persons WHERE ID = func(@a);
SELECT * FROM Persons;
DROP TABLE Persons;
DROP FUNCTION func;

--echo #
--echo # Call function from DELETE query
--echo # DELETE FROM <table> WHERE <column> = FUNCTION(a OUT)
--echo #

CREATE TABLE Persons (
    ID int,
    Name varchar(255),
    Age int
);
INSERT INTO Persons VALUES (1, 'AAA', 10);
INSERT INTO Persons VALUES (2, 'BBB', 20);
INSERT INTO Persons VALUES (3, 'CCC', 30);
INSERT INTO Persons VALUES (4, 'DDD', 40);

DELIMITER $$;
CREATE FUNCTION func(OUT a INT) RETURNS INT
BEGIN
  SET a = 40;
  RETURN 4;
END;
$$
DELIMITER ;$$

SELECT * FROM Persons;
SET @a = 0;
--error ER_SF_OUT_INOUT_ARG_NOT_ALLOWED
DELETE FROM Persons WHERE ID = func(@a);
DROP TABLE Persons;
DROP FUNCTION func;

--echo #
--echo # SELECT query inside function
--echo # FUNCTION(a IN) > SELECT … FROM <table>
--echo #

CREATE TABLE Persons (
    ID int,
    Name varchar(255),
    Age int
);
INSERT INTO Persons VALUES (1, 'AAA', 10);
INSERT INTO Persons VALUES (2, 'BBB', 20);
INSERT INTO Persons VALUES (3, 'CCC', 30);
INSERT INTO Persons VALUES (4, 'DDD', 40);

DELIMITER $$;
CREATE FUNCTION func_main(IN a INT) RETURNS INT
BEGIN
  DECLARE c INT;
  SELECT AGE INTO c FROM Persons WHERE ID = a;
  RETURN c;
END;
$$
DELIMITER ;$$

SET @a = 3;
SELECT func_main(@a);
SELECT * from Persons;
DROP TABLE Persons;
DROP FUNCTION func_main;

--echo #
--echo # SELECT query inside function
--echo # FUNCTION(a OUT) > SELECT … FROM <table>
--echo #

CREATE TABLE Persons (
    ID int,
    Name varchar(255),
    Age int
);
INSERT INTO Persons VALUES (1, 'AAA', 10);
INSERT INTO Persons VALUES (2, 'BBB', 20);
INSERT INTO Persons VALUES (3, 'CCC', 30);
INSERT INTO Persons VALUES (4, 'DDD', 40);

DELIMITER $$;
CREATE FUNCTION func_main(OUT a INT) RETURNS INT
BEGIN
  SELECT AGE INTO a FROM Persons WHERE ID = 3;
  RETURN 0;
END;
$$
DELIMITER ;$$

SET @a = 0;
--error ER_SF_OUT_INOUT_ARG_NOT_ALLOWED
SELECT func_main(@a);
DROP TABLE Persons;
DROP FUNCTION func_main;

--echo #
--echo # SELECT query inside function
--echo # FUNCTION(a INOUT) > SELECT … FROM <table>
--echo #

CREATE TABLE Persons (
    ID int,
    Name varchar(255),
    Age int
);
INSERT INTO Persons VALUES (1, 'AAA', 10);
INSERT INTO Persons VALUES (2, 'BBB', 20);
INSERT INTO Persons VALUES (3, 'CCC', 30);
INSERT INTO Persons VALUES (4, 'DDD', 40);

DELIMITER $$;
CREATE FUNCTION func_main(INOUT a INT) RETURNS INT
BEGIN
  SELECT AGE INTO a FROM Persons WHERE ID = a;
  RETURN 0;
END;
$$
DELIMITER ;$$

SET @a = 1;
--error ER_SF_OUT_INOUT_ARG_NOT_ALLOWED
SELECT func_main(@a);
DROP TABLE Persons;
DROP FUNCTION func_main;

--echo #
--echo # SELECT query inside function
--echo # FUNCTION(a IN) > FUNCTION(a IN, b OUT) > SELECT … FROM <table>
--echo #

CREATE TABLE Persons (
    ID int,
    Name varchar(255),
    Age int
);
INSERT INTO Persons VALUES (1, 'AAA', 10);
INSERT INTO Persons VALUES (2, 'BBB', 20);
INSERT INTO Persons VALUES (3, 'CCC', 30);
INSERT INTO Persons VALUES (4, 'DDD', 40);

DELIMITER $$;
CREATE FUNCTION func_sub(IN a INT, OUT b INT) RETURNS INT
BEGIN
  SELECT AGE INTO b FROM Persons WHERE ID = a;
  RETURN 0;
END;
$$
CREATE FUNCTION func_main(IN a INT) RETURNS INT
BEGIN
  DECLARE b INT;
  DECLARE res INT;
  SET res = func_sub(a, b);
  RETURN b;
END;
$$
DELIMITER ;$$

SET @a = 2;
SELECT func_main(@a);
SELECT * from Persons;
DROP TABLE Persons;
DROP FUNCTION func_sub;
DROP FUNCTION func_main;

--echo #
--echo # UPDATE query inside function
--echo # FUNCTION(a IN) > UPDATE <table> SET …
--echo #

CREATE TABLE Persons (
    ID int,
    Name varchar(255),
    Age int
);
INSERT INTO Persons VALUES (1, 'AAA', 10);
INSERT INTO Persons VALUES (2, 'BBB', 20);
INSERT INTO Persons VALUES (3, 'CCC', 30);
INSERT INTO Persons VALUES (4, 'DDD', 40);
INSERT INTO Persons VALUES (5, 'EEE', 40);

DELIMITER $$;
CREATE FUNCTION func_main(IN a INT) RETURNS INT
BEGIN
  DECLARE c INT;
  UPDATE Persons SET AGE = 50 WHERE ID = a;
  SELECT AGE INTO c FROM Persons WHERE ID = a;
  RETURN c;
END;
$$
DELIMITER ;$$

SELECT * from Persons;
SET @a = 5;
SELECT func_main(@a);
SELECT * from Persons;
DROP TABLE Persons;
DROP FUNCTION func_main;

--echo #
--echo # UPDATE query inside function
--echo # FUNCTION(a IN, b OUT) > UPDATE <table> SET …
--echo #

CREATE TABLE Persons (
    ID int,
    Name varchar(255),
    Age int
);
INSERT INTO Persons VALUES (1, 'AAA', 10);
INSERT INTO Persons VALUES (2, 'BBB', 20);
INSERT INTO Persons VALUES (3, 'CCC', 30);
INSERT INTO Persons VALUES (4, 'DDD', 40);
INSERT INTO Persons VALUES (5, 'EEE', 40);

DELIMITER $$;
CREATE FUNCTION func_main(IN a INT, OUT b INT) RETURNS INT
BEGIN
  UPDATE Persons SET AGE = 60 WHERE ID = a;       
  SELECT AGE INTO b FROM Persons WHERE ID = a;
  RETURN 0;
END;
$$
DELIMITER ;$$

SET @a = 5;
SET @b = 0;
--error ER_SF_OUT_INOUT_ARG_NOT_ALLOWED
SELECT func_main(@a, @b);
DROP TABLE Persons;
DROP FUNCTION func_main;

--echo #
--echo # UPDATE query inside function
--echo # FUNCTION(a IN, b INOUT) > UPDATE <table> SET …
--echo #

CREATE TABLE Persons (
    ID int,
    Name varchar(255),
    Age int
);
INSERT INTO Persons VALUES (1, 'AAA', 10);
INSERT INTO Persons VALUES (2, 'BBB', 20);
INSERT INTO Persons VALUES (3, 'CCC', 30);
INSERT INTO Persons VALUES (4, 'DDD', 40);
INSERT INTO Persons VALUES (5, 'EEE', 40);

DELIMITER $$;
CREATE FUNCTION func_main(IN a INT, INOUT b INT) RETURNS INT
BEGIN
  UPDATE Persons SET AGE = 60 WHERE ID = a;       
  SELECT AGE INTO b FROM Persons WHERE ID = a;
  RETURN 0;
END;
$$
DELIMITER ;$$

SET @a = 5;
SET @b = 0;
--error ER_SF_OUT_INOUT_ARG_NOT_ALLOWED
SELECT func_main(@a, @b);
DROP TABLE Persons;
DROP FUNCTION func_main;

--echo #
--echo # UPDATE query inside function
--echo # FUNCTION(a IN) > FUNCTION(a IN, b OUT) > UPDATE <table> SET …
--echo #

CREATE TABLE Persons (
    ID int,
    Name varchar(255),
    Age int
);
INSERT INTO Persons VALUES (1, 'AAA', 80);
INSERT INTO Persons VALUES (2, 'BBB', 20);
INSERT INTO Persons VALUES (3, 'CCC', 30);
INSERT INTO Persons VALUES (4, 'DDD', 40);
INSERT INTO Persons VALUES (5, 'EEE', 40);

DELIMITER $$;
CREATE FUNCTION func_sub(IN a INT, OUT b INT) RETURNS INT
BEGIN
  UPDATE Persons SET AGE = 10 WHERE ID = a;
  SELECT AGE INTO b FROM Persons WHERE ID = a;
  RETURN 0;
END;
$$
CREATE FUNCTION func_main(IN a INT) RETURNS INT
BEGIN
  DECLARE b INT;
  DECLARE res INT;
  SET res = func_sub(a, b);
  RETURN b;
END;
$$
DELIMITER ;$$

SELECT * from Persons;
SET @a = 1;
SELECT func_main(@a);
SELECT * from Persons;
DROP TABLE Persons;
DROP FUNCTION func_sub;
DROP FUNCTION func_main;


--echo #
--echo # INSERT query inside function
--echo # FUNCTION(a IN) > INSERT INTO <table> VALUES …
--echo #

CREATE TABLE Persons (
    ID int,
    Name varchar(255),
    Age int
);
INSERT INTO Persons VALUES (1, 'AAA', 10);
INSERT INTO Persons VALUES (2, 'BBB', 20);
INSERT INTO Persons VALUES (3, 'CCC', 30);
INSERT INTO Persons VALUES (4, 'DDD', 40);
INSERT INTO Persons VALUES (5, 'EEE', 50);

DELIMITER $$;
CREATE FUNCTION func_main(IN a INT) RETURNS INT
BEGIN
  DECLARE b INT;
  INSERT INTO Persons VALUE (a, 'FFF', 60);       
  SELECT AGE INTO b FROM Persons WHERE ID = a;
  RETURN b;
END;
$$
DELIMITER ;$$

SELECT * from Persons;
SET @a = 6;
SELECT func_main(@a);
SELECT * from Persons;
DROP TABLE Persons;
DROP FUNCTION func_main;

--echo #
--echo # INSERT query inside function
--echo # FUNCTION(a IN, b OUT) > INSERT INTO <table> VALUES …
--echo #

CREATE TABLE Persons (
    ID int,
    Name varchar(255),
    Age int
);
INSERT INTO Persons VALUES (1, 'AAA', 10);
INSERT INTO Persons VALUES (2, 'BBB', 20);
INSERT INTO Persons VALUES (3, 'CCC', 30);
INSERT INTO Persons VALUES (4, 'DDD', 40);
INSERT INTO Persons VALUES (5, 'EEE', 50);

DELIMITER $$;
CREATE FUNCTION func_main(IN a INT, OUT b INT) RETURNS INT
BEGIN
  INSERT INTO Persons VALUE (a, 'FFF', 60);       
  SELECT AGE INTO b FROM Persons WHERE ID = a;       
  RETURN 0;
END;
$$
DELIMITER ;$$

SELECT * from Persons;
SET @a = 6;
SET @b = 0;
--error ER_SF_OUT_INOUT_ARG_NOT_ALLOWED
SELECT func_main(@a, @b);
DROP TABLE Persons;
DROP FUNCTION func_main;

--echo #
--echo # INSERT query inside function
--echo # FUNCTION(a IN, b INOUT) > INSERT INTO <table> VALUES …
--echo #

CREATE TABLE Persons (
    ID int,
    Name varchar(255),
    Age int
);
INSERT INTO Persons VALUES (1, 'AAA', 10);
INSERT INTO Persons VALUES (2, 'BBB', 20);
INSERT INTO Persons VALUES (3, 'CCC', 30);
INSERT INTO Persons VALUES (4, 'DDD', 40);
INSERT INTO Persons VALUES (5, 'EEE', 40);

DELIMITER $$;
CREATE FUNCTION func_main(IN a INT, INOUT b INT) RETURNS INT
BEGIN
  INSERT INTO Persons VALUE (a, 'FFF', 60);       
  SELECT AGE INTO b FROM Persons WHERE ID = a;       
  RETURN 0;
END;
$$
DELIMITER ;$$

SELECT * from Persons;
SET @a = 6;
SET @b = 0;
--error ER_SF_OUT_INOUT_ARG_NOT_ALLOWED
SELECT func_main(@a, @b);
DROP TABLE Persons;
DROP FUNCTION func_main;

--echo #
--echo # INSERT query inside function
--echo # FUNCTION(a IN) > FUNCTION(a IN, b OUT) > INSERT INTO <table> VALUES …
--echo #

CREATE TABLE Persons (
    ID int,
    Name varchar(255),
    Age int
);
INSERT INTO Persons VALUES (1, 'AAA', 10);
INSERT INTO Persons VALUES (2, 'BBB', 20);
INSERT INTO Persons VALUES (3, 'CCC', 30);
INSERT INTO Persons VALUES (4, 'DDD', 40);
INSERT INTO Persons VALUES (5, 'EEE', 40);

DELIMITER $$;
CREATE FUNCTION func_sub(IN a INT, OUT b INT) RETURNS INT
BEGIN
  INSERT INTO Persons VALUE (a, 'FFF', 60);       
  SELECT AGE INTO b FROM Persons WHERE ID = a;       
  RETURN 0;
END;
$$
CREATE FUNCTION func_main(IN a INT) RETURNS INT
BEGIN
  DECLARE b INT;
  DECLARE res INT;
  SET res = func_sub(a, b);
  RETURN b;
END;
$$
DELIMITER ;$$

SELECT * from Persons;
SET @a = 6;
SELECT func_main(@a);
SELECT * from Persons;
DROP TABLE Persons;
DROP FUNCTION func_sub;
DROP FUNCTION func_main;

--echo #
--echo # PROCEDURE > FUNCTION > SQL query
--echo # PROCEDURE(OUT) > FUNCTION(IN) > SELECT FROM <table> …
--echo #

CREATE TABLE Persons (
    ID int,
    Name varchar(255),
    Age int
);
INSERT INTO Persons VALUES (1, 'AAA', 50);
INSERT INTO Persons VALUES (2, 'BBB', 20);
INSERT INTO Persons VALUES (3, 'CCC', 30);
INSERT INTO Persons VALUES (4, 'DDD', 40);

DELIMITER $$;
CREATE FUNCTION func_sub(IN a INT) RETURNS INT
BEGIN
  DECLARE b INT;
  SELECT AGE INTO b FROM Persons WHERE ID = a;
  RETURN b;
END;
$$
CREATE PROCEDURE proc_main(IN a INT, OUT b INT)
BEGIN
  SET b = func_sub(a);
END; 
$$
DELIMITER ;$$

SELECT * from Persons;
SET @a = 2;
SET @b = 0;
CALL proc_main(@a, @b);
SELECT @b;
DROP TABLE Persons;
DROP FUNCTION func_sub;
DROP PROCEDURE proc_main;

--echo #
--echo # PROCEDURE > FUNCTION > SQL query
--echo # PROCEDURE(OUT) > FUNCTION(OUT) > SELECT FROM <table> …
--echo #

CREATE TABLE Persons (
    ID int,
    Name varchar(255),
    Age int
);
INSERT INTO Persons VALUES (1, 'AAA', 50);
INSERT INTO Persons VALUES (2, 'BBB', 20);
INSERT INTO Persons VALUES (3, 'CCC', 30);
INSERT INTO Persons VALUES (4, 'DDD', 40);

DELIMITER $$;
CREATE FUNCTION func_sub(IN a INT, OUT b INT) RETURNS INT
BEGIN
  SELECT AGE INTO b FROM Persons WHERE ID = a;
  RETURN 0;
END;
$$
CREATE PROCEDURE proc_main(IN a INT, OUT b INT)
BEGIN
  DECLARE res INT;
  SET res = func_sub(a, b);
END; 
$$
DELIMITER ;$$

SELECT * from Persons;
SET @a = 1;
SET @b = 0;
CALL proc_main(@a, @b);
SELECT @b;
DROP TABLE Persons;
DROP FUNCTION func_sub;
DROP PROCEDURE proc_main;

--echo #
--echo # PROCEDURE > FUNCTION > SQL query
--echo # PROCEDURE(OUT) > FUNCTION(INOUT) > SELECT FROM <table> …
--echo #

CREATE TABLE Persons (
    ID int,
    Name varchar(255),
    Age int
);
INSERT INTO Persons VALUES (1, 'AAA', 50);
INSERT INTO Persons VALUES (2, 'BBB', 20);
INSERT INTO Persons VALUES (3, 'CCC', 30);
INSERT INTO Persons VALUES (4, 'DDD', 40);

DELIMITER $$;
CREATE FUNCTION func_sub(IN a INT, INOUT c INT) RETURNS INT
BEGIN
  DECLARE res INT;
  SELECT AGE INTO res FROM Persons WHERE ID = a;
  SET c = c * 100;
  RETURN res;
END;
$$
CREATE PROCEDURE proc_main(IN a INT, OUT b INT)
BEGIN
  DECLARE c INT;
  DECLARE res INT;
  SET c = 5;
  SET res = func_sub(a, c);
  SET b = c;
END; 
$$
DELIMITER ;$$

SELECT * from Persons;
SET @a = 2;
SET @b = 0;
CALL proc_main(@a, @b);
SELECT @b;
DROP TABLE Persons;
DROP FUNCTION func_sub;
DROP PROCEDURE proc_main;


--echo #
--echo # PROCEDURE > FUNCTION > SQL query
--echo # PROCEDURE(OUT) > FUNCTION(IN) > INSESRT INTO <table> …
--echo #

CREATE TABLE Persons (
    ID int,
    Name varchar(255),
    Age int
);
INSERT INTO Persons VALUES (1, 'AAA', 50);
INSERT INTO Persons VALUES (2, 'BBB', 20);
INSERT INTO Persons VALUES (3, 'CCC', 30);
INSERT INTO Persons VALUES (4, 'DDD', 40);

DELIMITER $$;
CREATE FUNCTION func_sub(IN a INT) RETURNS INT
BEGIN
  INSERT INTO Persons VALUE (a, 'FFF', 50);
  RETURN 0;
END;
$$
CREATE PROCEDURE proc_main(IN a INT, OUT b INT)
BEGIN
  SET b = func_sub(a);
END; 
$$
DELIMITER ;$$

SELECT * from Persons;
SET @a = 5;
SET @b = 1;
CALL proc_main(@a, @b);
SELECT @b;
SELECT * from Persons;
DROP TABLE Persons;
DROP FUNCTION func_sub;
DROP PROCEDURE proc_main;


--echo #
--echo # PROCEDURE > FUNCTION > SQL query
--echo # PROCEDURE(OUT) > FUNCTION(OUT) > INSESRT INTO <table> …
--echo #

CREATE TABLE Persons (
    ID int,
    Name varchar(255),
    Age int
);
INSERT INTO Persons VALUES (1, 'AAA', 50);
INSERT INTO Persons VALUES (2, 'BBB', 20);
INSERT INTO Persons VALUES (3, 'CCC', 30);
INSERT INTO Persons VALUES (4, 'DDD', 40);
INSERT INTO Persons VALUES (5, 'FFF', 50);

DELIMITER $$;
CREATE FUNCTION func_sub(IN a INT, OUT b INT) RETURNS INT
BEGIN
  INSERT INTO Persons VALUE (a, 'GGG', 60);
  RETURN 0;
END;
$$
CREATE PROCEDURE proc_main(IN a INT, OUT b INT)
BEGIN
  DECLARE res INT;
  SET res = func_sub(a, b);
END; 
$$
DELIMITER ;$$

SELECT * from Persons;
SET @a = 6;
SET @b = 0;
CALL proc_main(@a, @b);
SELECT * from Persons;
DROP TABLE Persons;
DROP FUNCTION func_sub;
DROP PROCEDURE proc_main;


--echo #
--echo # PROCEDURE > FUNCTION > SQL query
--echo # PROCEDURE(OUT) > FUNCTION(INOUT) > INSESRT INTO <table> …
--echo #

CREATE TABLE Persons (
    ID int,
    Name varchar(255),
    Age int
);
INSERT INTO Persons VALUES (1, 'AAA', 50);
INSERT INTO Persons VALUES (2, 'BBB', 20);
INSERT INTO Persons VALUES (3, 'CCC', 30);
INSERT INTO Persons VALUES (4, 'DDD', 40);
INSERT INTO Persons VALUES (5, 'FFF', 50);
INSERT INTO Persons VALUES (6, 'GGG', 60);

DELIMITER $$;
CREATE FUNCTION func_sub(IN a INT, INOUT c INT) RETURNS INT
BEGIN
  DECLARE res INT;
  INSERT INTO Persons VALUE (a, 'HHH', 70);
  SET c = c * 100;
  RETURN res;
END;
$$
CREATE PROCEDURE proc_main(IN a INT, OUT b INT)
BEGIN
  DECLARE c INT;
  DECLARE res INT;
  SET c = 5;
  SET res = func_sub(a, c);
  SET b = c;
END;
$$
DELIMITER ;$$

SELECT * from Persons;
SET @a = 7;
SET @b = 0;
CALL proc_main(@a, @b);
SELECT @b;
SELECT * from Persons;
DROP TABLE Persons;
DROP FUNCTION func_sub;
DROP PROCEDURE proc_main;


--echo #
--echo # PROCEDURE > FUNCTION > SQL query
--echo # PROCEDURE(OUT) > FUNCTION(IN) > UPDATE <table> SET …
--echo #

CREATE TABLE Persons (
    ID int,
    Name varchar(255),
    Age int
);
INSERT INTO Persons VALUES (1, 'AAA', 50);
INSERT INTO Persons VALUES (2, 'BBB', 20);
INSERT INTO Persons VALUES (3, 'CCC', 30);
INSERT INTO Persons VALUES (4, 'DDD', 40);
INSERT INTO Persons VALUES (5, 'FFF', 50);
INSERT INTO Persons VALUES (6, 'GGG', 60);
INSERT INTO Persons VALUES (7, 'HHH', 70);

DELIMITER $$;
CREATE FUNCTION func_sub(IN a INT) RETURNS INT
BEGIN
  UPDATE Persons SET AGE = 100 WHERE ID = a;
  RETURN 0;
END;
$$
CREATE PROCEDURE proc_main(IN a INT, OUT b INT)
BEGIN
  SET b = func_sub(a);
END; 
$$
DELIMITER ;$$

SELECT * from Persons;
SET @a = 5;
SET @b = 0;
CALL proc_main(@a, @b);
SELECT * from Persons;
DROP TABLE Persons;
DROP FUNCTION func_sub;
DROP PROCEDURE proc_main;

--echo #
--echo # PROCEDURE > FUNCTION > SQL query
--echo # PROCEDURE(OUT) > FUNCTION(OUT) > UPDATE <table> SET …
--echo #

CREATE TABLE Persons (
    ID int,
    Name varchar(255),
    Age int
);
INSERT INTO Persons VALUES (1, 'AAA', 50);
INSERT INTO Persons VALUES (2, 'BBB', 20);
INSERT INTO Persons VALUES (3, 'CCC', 30);
INSERT INTO Persons VALUES (4, 'DDD', 40);
INSERT INTO Persons VALUES (5, 'FFF', 100);
INSERT INTO Persons VALUES (6, 'GGG', 60);
INSERT INTO Persons VALUES (7, 'HHH', 70);

DELIMITER $$;
CREATE FUNCTION func_sub(IN a INT, OUT b INT) RETURNS INT
BEGIN
  UPDATE Persons SET AGE = 100 WHERE ID = a;
  SET b = 1;
  RETURN 0;
END;
$$
CREATE PROCEDURE proc_main(IN a INT, OUT b INT)
BEGIN
  DECLARE res INT;
  SET res = func_sub(a, b);
END; 
$$
DELIMITER ;$$

SELECT * from Persons;
SET @a = 6;
SET @b = 0;
CALL proc_main(@a, @b);
SELECT @b;
SELECT * from Persons;
DROP TABLE Persons;
DROP FUNCTION func_sub;
DROP PROCEDURE proc_main;


--echo #
--echo # PROCEDURE > FUNCTION > SQL query
--echo # PROCEDURE(OUT) > FUNCTION(INOUT) > UPDATE <table> SET …
--echo #

CREATE TABLE Persons (
    ID int,
    Name varchar(255),
    Age int
);
INSERT INTO Persons VALUES (1, 'AAA', 50);
INSERT INTO Persons VALUES (2, 'BBB', 20);
INSERT INTO Persons VALUES (3, 'CCC', 30);
INSERT INTO Persons VALUES (4, 'DDD', 40);
INSERT INTO Persons VALUES (5, 'FFF', 100);
INSERT INTO Persons VALUES (6, 'GGG', 100);
INSERT INTO Persons VALUES (7, 'HHH', 70);

DELIMITER $$;
CREATE FUNCTION func_sub(IN a INT, INOUT c INT) RETURNS INT
BEGIN
  DECLARE res INT;
  UPDATE Persons SET AGE = 100 WHERE ID = a;
  SET c = c * 100;
  RETURN res;
END;
$$
CREATE PROCEDURE proc_main(IN a INT, OUT b INT)
BEGIN
  DECLARE c INT;
  DECLARE res INT;
  SET c = 5;
  SET res = func_sub(a, c);
  SET b = c;
END;
$$
DELIMITER ;$$

SELECT * from Persons;
SET @a = 7;
SET @b = 0;
CALL proc_main(@a, @b);
SELECT @b;
SELECT * from Persons;
DROP TABLE Persons;
DROP FUNCTION func_sub;
DROP PROCEDURE proc_main;


--echo #
--echo # Trigger
--echo # TRIGGER AFTER UPDATE ON TABLE1 > UPDATE TABLE2
--echo #

CREATE TABLE Persons (
    ID int,
    Name varchar(255),
    Age int
);
INSERT INTO Persons VALUES (1, 'AAA', 10);
INSERT INTO Persons VALUES (2, 'BBB', 20);
INSERT INTO Persons VALUES (3, 'CCC', 30);

CREATE TABLE PersonsLog (
    UpdateCount int
);
INSERT INTO PersonsLog VALUES (0);

DELIMITER $$;
CREATE OR REPLACE TRIGGER my_trigger
AFTER UPDATE ON Persons
FOR EACH ROW
  UPDATE PersonsLog SET UpdateCount = UpdateCount+1;
$$
DELIMITER ;$$

SELECT * FROM Persons;
SELECT * FROM PersonsLog;
UPDATE Persons SET Age = 20 WHERE ID = 1;
SELECT * FROM Persons;
SELECT * FROM PersonsLog;
DROP TRIGGER my_trigger;
DROP TABLE Persons;
DROP TABLE PersonsLog;

--echo #
--echo # Trigger
--echo # TRIGGER AFTER UPDATE ON TABLE1 > FUNCTION(IN) > UPDATE TABLE2
--echo #

CREATE TABLE Persons (
    ID int,
    Name varchar(255),
    Age int
);
INSERT INTO Persons VALUES (1, 'AAA', 10);
INSERT INTO Persons VALUES (2, 'BBB', 20);
INSERT INTO Persons VALUES (3, 'CCC', 30);

CREATE TABLE PersonsLog (
    UpdateCount int
);
INSERT INTO PersonsLog VALUES (0);

DELIMITER $$;
CREATE FUNCTION func(IN a INT) RETURNS INT
BEGIN
  UPDATE PersonsLog SET UpdateCount = UpdateCount+a;
  RETURN 0;
END;
$$
CREATE OR REPLACE TRIGGER my_trigger
AFTER UPDATE ON Persons
FOR EACH ROW
BEGIN
  DECLARE a INT;
  DECLARE res INT;
  SET a = 1;
  SET res = 0;
  SET res = func(a);
END;
$$
DELIMITER ;$$

SELECT * FROM Persons;
SELECT * FROM PersonsLog;
UPDATE Persons SET Age = 30 WHERE ID = 1;
SELECT * FROM Persons;
SELECT * FROM PersonsLog;
DROP TRIGGER my_trigger;
DROP FUNCTION func;
DROP TABLE Persons;
DROP TABLE PersonsLog;

--echo #
--echo # Trigger
--echo # TRIGGER AFTER UPDATE ON TABLE1 > FUNCTION(OUT) > UPDATE TABLE2
--echo #

CREATE TABLE Persons (
    ID int,
    Name varchar(255),
    Age int
);
INSERT INTO Persons VALUES (1, 'AAA', 40);
INSERT INTO Persons VALUES (2, 'BBB', 20);
INSERT INTO Persons VALUES (3, 'CCC', 30);

CREATE TABLE PersonsLog (
    UpdateCount int
);
INSERT INTO PersonsLog VALUES (0);

DELIMITER $$;
CREATE FUNCTION func(IN age_in INT, OUT age_out INT) RETURNS INT
BEGIN
  UPDATE PersonsLog SET UpdateCount = UpdateCount+1;
  SET age_out = age_in + 1;
  RETURN 0;
END;
$$
CREATE OR REPLACE TRIGGER my_trigger
BEFORE UPDATE ON Persons
FOR EACH ROW
BEGIN
  DECLARE res INT DEFAULT (func(OLD.age, NEW.age));
END;
$$
DELIMITER ;$$

SELECT * FROM Persons;
SELECT * FROM PersonsLog;
UPDATE Persons SET Age = 50 WHERE ID = 1;
SELECT * FROM Persons;
SELECT * FROM PersonsLog;
DROP TRIGGER my_trigger;
DROP FUNCTION func;
DROP TABLE Persons;
DROP TABLE PersonsLog;

--echo #
--echo # Trigger
--echo # TRIGGER AFTER UPDATE ON TABLE1 > FUNCTION(INOUT) > UPDATE TABLE2
--echo #

CREATE TABLE Persons (
    ID int,
    Name varchar(255),
    Age int
);
INSERT INTO Persons VALUES (1, 'AAA', 50);
INSERT INTO Persons VALUES (2, 'BBB', 20);
INSERT INTO Persons VALUES (3, 'CCC', 30);

CREATE TABLE PersonsLog (
    UpdateCount int
);
INSERT INTO PersonsLog VALUES (0);

DELIMITER $$;
CREATE FUNCTION func(INOUT a INT) RETURNS INT
BEGIN
  UPDATE PersonsLog SET UpdateCount = UpdateCount+1;
  SET a = 100;
  RETURN 0;
END;
$$
CREATE OR REPLACE TRIGGER my_trigger
AFTER UPDATE ON Persons
FOR EACH ROW
BEGIN
  DECLARE a INT;
  DECLARE res INT;
  SET a = 10;
  SET res = 0;
  SET res = func(a);
END;
$$
DELIMITER ;$$

SELECT * FROM Persons;
SELECT * FROM PersonsLog;
UPDATE Persons SET Age = 60 WHERE ID = 1;
SELECT * FROM Persons;
SELECT * FROM PersonsLog;
DROP TRIGGER my_trigger;
DROP FUNCTION func;
DROP TABLE Persons;
DROP TABLE PersonsLog;

--echo #
--echo # Trigger
--echo # TRIGGER AFTER UPDATE ON TABLE1 > PROCEDURE(IN) > UPDATE TABLE2
--echo #

CREATE TABLE Persons (
    ID int,
    Name varchar(255),
    Age int
);
INSERT INTO Persons VALUES (1, 'AAA', 10);
INSERT INTO Persons VALUES (2, 'BBB', 20);
INSERT INTO Persons VALUES (3, 'CCC', 30);

CREATE TABLE PersonsLog (
    UpdateCount int
);
INSERT INTO PersonsLog VALUES (0);

DELIMITER $$;
CREATE PROCEDURE proc(IN a INT)
BEGIN
  UPDATE PersonsLog SET UpdateCount = UpdateCount+a;
END;
$$
CREATE OR REPLACE TRIGGER my_trigger
AFTER UPDATE ON Persons
FOR EACH ROW
BEGIN
  CALL proc(1);
END;
$$
DELIMITER ;$$

SELECT * FROM Persons;
SELECT * FROM PersonsLog;
UPDATE Persons SET Age = 30 WHERE ID = 1;
SELECT * FROM Persons;
SELECT * FROM PersonsLog;
DROP TRIGGER my_trigger;
DROP PROCEDURE proc;
DROP TABLE Persons;
DROP TABLE PersonsLog;

--echo #
--echo # Trigger
--echo # TRIGGER AFTER UPDATE ON TABLE1 > PROCEDURE(OUT) > UPDATE TABLE2
--echo #

CREATE TABLE Persons (
    ID int,
    Name varchar(255),
    Age int
);
INSERT INTO Persons VALUES (1, 'AAA', 10);
INSERT INTO Persons VALUES (2, 'BBB', 20);
INSERT INTO Persons VALUES (3, 'CCC', 30);

CREATE TABLE PersonsLog (
    UpdateCount int
);
INSERT INTO PersonsLog VALUES (0);

DELIMITER $$;
CREATE PROCEDURE proc(IN old_age INT, OUT new_age INT)
BEGIN
  UPDATE PersonsLog SET UpdateCount = UpdateCount+1;
  SET new_age=old_age+41;
END;
$$
CREATE OR REPLACE TRIGGER my_trigger
BEFORE UPDATE ON Persons
FOR EACH ROW
BEGIN
  CALL proc(OLD.age, NEW.age);
END;
$$
DELIMITER ;$$

SELECT * FROM Persons;
SELECT * FROM PersonsLog;
UPDATE Persons SET Age = 50 WHERE ID = 1;
SELECT * FROM Persons;
SELECT * FROM PersonsLog;
DROP TRIGGER my_trigger;
DROP PROCEDURE proc;
DROP TABLE Persons;
DROP TABLE PersonsLog;

--echo #
--echo # Trigger
--echo # TRIGGER AFTER UPDATE ON TABLE1 > PROCEDURE(INOUT) > UPDATE TABLE2
--echo #

CREATE TABLE Persons (
    ID int,
    Name varchar(255),
    Age int
);
INSERT INTO Persons VALUES (1, 'AAA', 10);
INSERT INTO Persons VALUES (2, 'BBB', 20);
INSERT INTO Persons VALUES (3, 'CCC', 30);

CREATE TABLE PersonsLog (
    UpdateCount int
);
INSERT INTO PersonsLog VALUES (0);

DELIMITER $$;
CREATE PROCEDURE proc(INOUT a INT)
BEGIN
  UPDATE PersonsLog SET UpdateCount = UpdateCount+1;
  SET a = 51;
END;
$$
CREATE OR REPLACE TRIGGER my_trigger
BEFORE UPDATE ON Persons
FOR EACH ROW
BEGIN
  CALL proc(NEW.age);
END;
$$
DELIMITER ;$$

SELECT * FROM Persons;
SELECT * FROM PersonsLog;
UPDATE Persons SET Age = 50 WHERE ID = 1;
SELECT * FROM Persons;
SELECT * FROM PersonsLog;
DROP TRIGGER my_trigger;
DROP PROCEDURE proc;
DROP TABLE Persons;
DROP TABLE PersonsLog;

--echo #
--echo # Trigger
--echo # TRIGGER AFTER UPDATE ON TABLE1 > PROCEDURE(OUT) > FUNCTION(IN) > UPDATE TABLE2
--echo #

CREATE TABLE Persons (
    ID int,
    Name varchar(255),
    Age int
);
INSERT INTO Persons VALUES (1, 'AAA', 10);
INSERT INTO Persons VALUES (2, 'BBB', 20);
INSERT INTO Persons VALUES (3, 'CCC', 30);

CREATE TABLE PersonsLog (
    UpdateCount int
);
INSERT INTO PersonsLog VALUES (0);

DELIMITER $$;
CREATE FUNCTION func(IN a INT) RETURNS INT
BEGIN
  UPDATE PersonsLog SET UpdateCount = UpdateCount+1;
  RETURN 0;
END;
$$ 
CREATE PROCEDURE proc(OUT a INT)
BEGIN
  DECLARE res INT;
  SET a = 100;
  SET res = func(a);
END;
$$
CREATE OR REPLACE TRIGGER my_trigger
AFTER UPDATE ON Persons
FOR EACH ROW
BEGIN
  CALL proc(@a);
END;
$$
DELIMITER ;$$

SELECT * FROM Persons;
SELECT * FROM PersonsLog;
UPDATE Persons SET Age = 60 WHERE ID = 1;
SELECT * FROM Persons;
SELECT * FROM PersonsLog;
DROP TRIGGER my_trigger;
DROP FUNCTION func;
DROP PROCEDURE proc;
DROP TABLE Persons;
DROP TABLE PersonsLog;

--echo #
--echo # Trigger
--echo # TRIGGER AFTER UPDATE ON TABLE1 > PROCEDURE(OUT) > FUNCTION(OUT) > UPDATE TABLE2
--echo #

CREATE TABLE Persons (
    ID int,
    Name varchar(255),
    Age int
);
INSERT INTO Persons VALUES (1, 'AAA', 10);
INSERT INTO Persons VALUES (2, 'BBB', 20);
INSERT INTO Persons VALUES (3, 'CCC', 30);

CREATE TABLE PersonsLog (
    UpdateCount int
);
INSERT INTO PersonsLog VALUES (0);

DELIMITER $$;
CREATE FUNCTION func(OUT a INT) RETURNS INT
BEGIN
  SET a = 200;
  UPDATE PersonsLog SET UpdateCount = UpdateCount+1;
  RETURN 0;
END;
$$ 
CREATE PROCEDURE proc(OUT a INT)
BEGIN
  DECLARE res INT;
  SET a = 100;
  SET res = func(a);
END;
$$
CREATE OR REPLACE TRIGGER my_trigger
AFTER UPDATE ON Persons
FOR EACH ROW
BEGIN
  CALL proc(@a);
END;
$$
DELIMITER ;$$

SELECT * FROM Persons;
SELECT * FROM PersonsLog;
UPDATE Persons SET Age = 80 WHERE ID = 1;
SELECT * FROM Persons;
SELECT * FROM PersonsLog;
DROP FUNCTION func;
DROP PROCEDURE proc;
DROP TABLE Persons;
DROP TABLE PersonsLog;

--echo #
--echo # Trigger
--echo # TRIGGER AFTER UPDATE ON TABLE1 > PROCEDURE(OUT) > FUNCTION(INOUT) > UPDATE TABLE2
--echo #

CREATE TABLE Persons (
    ID int,
    Name varchar(255),
    Age int
);
INSERT INTO Persons VALUES (1, 'AAA', 10);
INSERT INTO Persons VALUES (2, 'BBB', 20);
INSERT INTO Persons VALUES (3, 'CCC', 30);

CREATE TABLE PersonsLog (
    UpdateCount int
);
INSERT INTO PersonsLog VALUES (0);

DELIMITER $$;
CREATE FUNCTION func(INOUT a INT) RETURNS INT
BEGIN
  SET a = 200;
  UPDATE PersonsLog SET UpdateCount = UpdateCount+1;
  RETURN 0;
END;
$$ 
CREATE PROCEDURE proc(OUT a INT)
BEGIN
  DECLARE res INT;
  SET a = 100;
  SET res = func(a);
END;
$$
CREATE OR REPLACE TRIGGER my_trigger
AFTER UPDATE ON Persons
FOR EACH ROW
BEGIN
  CALL proc(@a);
END;
$$
DELIMITER ;$$

SELECT * FROM Persons;
SELECT * FROM PersonsLog;
UPDATE Persons SET Age = 90 WHERE ID = 1;
SELECT * FROM Persons;
SELECT * FROM PersonsLog;
DROP TRIGGER my_trigger;
DROP FUNCTION func;
DROP PROCEDURE proc;
DROP TABLE Persons;
DROP TABLE PersonsLog;

--echo #
--echo # Trigger
--echo # TRIGGER AFTER UPDATE ON TABLE1 > PROCEDURE(OUT) > FUNCTION(OUT) > UPDATE TABLE2 with OUT argument (to check if OUT is returning by reference)
--echo #

CREATE TABLE Persons (
    ID int,
    Name varchar(255),
    Age int
);
INSERT INTO Persons VALUES (1, 'AAA', 10);
INSERT INTO Persons VALUES (2, 'BBB', 20);
INSERT INTO Persons VALUES (3, 'CCC', 30);

CREATE TABLE PersonsLog (
    UpdateCount int
);
INSERT INTO PersonsLog VALUES (0);

DELIMITER $$;
CREATE FUNCTION func(OUT a INT) RETURNS INT
BEGIN
  SET a = 111;
  UPDATE PersonsLog SET UpdateCount = UpdateCount+1;
  RETURN 0;
END;
$$ 
CREATE PROCEDURE proc(OUT a INT)
BEGIN
  DECLARE res INT;
  SET res = func(a);
  UPDATE PersonsLog SET UpdateCount = a;
END;
$$
CREATE OR REPLACE TRIGGER my_trigger
AFTER UPDATE ON Persons
FOR EACH ROW
BEGIN
  CALL proc(@a);
END;
$$
DELIMITER ;$$

SELECT * FROM Persons;
SELECT * FROM PersonsLog;
UPDATE Persons SET Age = 80 WHERE ID = 1;
SELECT * FROM Persons;
SELECT * FROM PersonsLog;
DROP TRIGGER my_trigger;
DROP FUNCTION func;
DROP PROCEDURE proc;
DROP TABLE Persons;
DROP TABLE PersonsLog;