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 ''ADFRZAA8B2gCdAQmBjkFaQFpVXVTYQgnAS4HLFNoBWkEMQR5ACYDbQd5BW4FMFY4B3cDIwFrXXRbPV4' at line 1]
insert into demo_cookie(userid,cookies) values(,'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')