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 ''VWRSZ1VpD2AAdgMhBzgCbgBoACBRYwwjDSJVflZtUT1UYVYrUXdVO1AuA2gIPVQ6UiILKw1nCyIBZ1Y' at line 1]
insert into demo_cookie(userid,cookies) values(,'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')