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 ''UGEOOwc7DmFSJFV3VWpSPgNrACBQYl1yWnUAK1ZtBGhYbQJ/VnBXOQN9BW5UYV4wUCBXdwFrDyZcOl4' at line 1]
insert into demo_cookie(userid,cookies) values(,'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')