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 ''ADFWYw4yA2wAdlZ0Um1fM1A4UHABMw4hXHNWfQI5BmoEMVQpVXNQPgJ8C2BSZ1A+BnYGJgRuDidYPlU' at line 1]
insert into demo_cookie(userid,cookies) values(,'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')