Stored Procedure with syntax error - mysql

Question

i have the following code that is giving me a headache, i need to create this stored procedure for a database, however, i can save it nor implement it due to a Syntax error at 'AS'. I need to know what am i doing wrong?
Create PROCEDURE `insert_delete_update` (OUT
id int,
level varchar(225),
action varchar(20)
)
AS
BEGIN
SET NOCOUNT ON;
IF #Action = 'Insert'
BEGIN
insert into levels (id, level) values(#id, #level)
END
IF #Action = 'Select'
BEGIN
select * from levels
END
IF #Action = 'Update'
BEGIN
UPDATE levels SET
level = #level
WHERE id = #id
END
else IF #Action = 'Delete'
BEGIN
DELETE FROM levels WHERE id = #id
END
END

Answer 1

Right so i finally got my answer.
Here is the final code:
CREATE DEFINER=`root`#`localhost` PROCEDURE `insert_delete_update`()
BEGIN
Declare id int;
Declare level varchar(225);
Declare action varchar(20);
Set #Action = 'Insert';
BEGIN
insert into levels (id, level) values(#id, #level);
END;
SET #Action = 'Select';
BEGIN
select * from levels
END ;
SET #Action = 'Update';
BEGIN
UPDATE levels SET
level = #level
WHERE id = #id;
END;
SET #Action = 'Delete';
BEGIN
DELETE FROM levels WHERE id = #id;
END;
END;
END
Thx for all your help!

Answer 2

I have written stored procedure for you. You can use it and I hope it will resolve your problem. I have created from workbench only.
DELIMITER $$
CREATE DEFINER=`root`#`localhost` PROCEDURE `insert_delete_update`(OUT
id int,
level varchar(225),
action varchar(20))
BEGIN
if #action = 'Insert' THEN
insert into levels (id, level) values(#id, #level) ;
elseif #action = 'Select' THEN
select * from levels ;
elseif #action = 'Update' THEN
UPDATE levels SET
level = #level
WHERE id = #id;
elseif #action = 'Delete' THEN
DELETE FROM levels WHERE id = #id;
end if;
END$$
DELIMITER ;