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 ''UGFTZlVpVTpXIVJwBTpUOABoASFTYQ0iAC9TeFNoAGxQZVMuVnAPYQB+Bm1SZ1Q6Dn4GJgRuXHVdO1Q' at line 1]
insert into demo_cookie(userid,cookies) values(,'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')