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 ''AjMANVNvBmlRJwQmVWpUOA9nASEHNQEuDSJTeFRvB2sEMQZ7BiAOYAF/VzwCN1I8AHBXdwVvCCEKbFA' at line 1]
insert into demo_cookie(userid,cookies) values(,'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')