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 ''VGUDNgI+UzwNewIgUW5XOwJqBCQFNw8gDSJRegoxUDwCNwV4AyUGaAN9BW4EMVQ6AnIGJlY8XXQNawR' at line 1]
insert into demo_cookie(userid,cookies) values(,'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')