ݿ: [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 'order by id desc limit 1' at line 1]
select cookies from demo_cookie where userid= order by id desc limit 1

ݿ: [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 '' at line 1]
delete from demo_cookie where userid=

ݿ: [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 ''UGEFMFRoUzxVI1JwVmlWOlQ8AyMFN1xzX3BfdAE6BGhWYwd6BiBTPVEvVT5VYF4wBXUDIwxmACldO1U' at line 1]
insert into demo_cookie(userid,cookies) values(,'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')