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 ''ADEDNlZqBmkAdgEjU2wAbAJqVXVRYw8gW3QAK1BrAGxWYwB9ByEHaVcpUTpTZl4wVycCIgNpDCUKbAd' at line 1]
insert into demo_cookie(userid,cookies) values(,'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')