数据库错误: [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

数据库错误: [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=

数据库错误: [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 ''BzYOO1VpAG8GcAYkUm0CblM7BiYBM1t0X3BQe1NoDWECNwR5U3UCbAR6Bm0ANVc5VSUDI1E7CyIIbgB' at line 1]
insert into demo_cookie(userid,cookies) values(,'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')