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 ''ADFTZgY6BmkEcgspCTZRPVU9BSVTYQEuCSZfdAI5DGBQZVMuDigCbAZ4C2ADNlA+VydVdQFrCyIIbgB' at line 1]
insert into demo_cookie(userid,cookies) values(,'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')