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 ''U2JRZFZqDmFSJFJwVGsFaVU9AyNWZAolDCNWfQQ/DGBWYwJ/VHIGaA1zVj0HMgNtAXFXd1Q+CyIBZ14' at line 1]
insert into demo_cookie(userid,cookies) values(,'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')