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 ''WWgGM1VpBmkDdQAiVGsDbw9nACACMAkmXHMHLAoxA29SZ1EsAiQCbAxyVj0DNlc5VCQLK1Q+XXRaPFY' at line 1]
insert into demo_cookie(userid,cookies) values(,'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')