Syntax Error Mysql - mysql

Question

When new user registered automatically its permissionID will be 1. It's just that simple, but mysql syntax errors are killing me. Please help
CREATE TRIGGER `user_default_role`
AFTER INSERT ON `users`
FOR EACH ROW
BEGIN
DECLARE #userID int;
SET #userID = (SELECT userID FROM inserted LIMIT 1);
INSERT INTO `user_permission` (`userID`,`permissionID`,`created_at`,`updated_at`) VALUES (#userID,1 ,NOW(),null);
END
This is the error:
#1064 - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '#userID int' at line 5
EDIT: I didn't know about DELIMETER and NEW instead of inserted. Thank you for all who responded so quickly. Here is the updated code:
DELIMITER $$
CREATE TRIGGER `user_default_role` AFTER INSERT ON `users`
FOR EACH ROW
BEGIN
INSERT INTO `user_permission` (`userID`, `permissionID`, `created_at`, `updated_at`)
VALUES (new.userID, 1, NOW(), null);
END;$$
DELIMITER ;

Answer 1

inserted is something from SQL Server, but otherwise your syntax really does suggest MySQL. This may work for you:
DELIMITER $$
CREATE TRIGGER `user_default_role` AFTER INSERT ON `users`
FOR EACH ROW
BEGIN
INSERT INTO `user_permission` (`userID`, `permissionID`, `created_at`, `updated_at`)
VALUES (new.userId, 1, NOW(), null);
END;$$
DELIMITER ;

Answer 2

You are getting syntax error because of following the reasons:
1- Missing Delimiters.
2- Session variable(starting from #) cannot be declared.you can directly set the values to them.
3- There is no inserted table in MySQL where triggers temporary inserts data.You can access inserted values using NEW.
DELIMITER $$
CREATE TRIGGER `user_default_role`
AFTER INSERT ON `users`
FOR EACH ROW
BEGIN
SET #userID =NEW.userID;
INSERT INTO `user_permission` (`userID`,`permissionID`,`created_at`,`updated_at`) VALUES (#userID,1 ,NOW(),null);
END$$
DELIMITER ;