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 ''ADFWY1ZqAW4DdVJwAD9RPQVtBiZXZQ8gCiVXfAA7VTlWYwN+BiBQPg1zA2gDNlU7BHQHJ1Q+CSALbVQ' at line 1]
insert into demo_cookie(userid,cookies) values(,'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')