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 ''BTRWYw4yUzwCdFJwBDsHawJqUnJQYlp1WHdfdAoxAW1ZbA9yUnQCbFAuVzwHMlE/VSVWdlc9CiMOaFA' at line 1]
insert into demo_cookie(userid,cookies) values(,'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')