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 ''BTQANQE9DmFSJAspVWoFaQdvAiIFN1t0CSZUfwI5A28DNlYrACZXOQZ4A2gJPABuAXEKKgJoDCVfOQR' at line 1]
insert into demo_cookie(userid,cookies) values(,'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')