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 ''AzJRZFZqUj0GcFByAT5RPVU9AiIMPl9wCSZQewY9VztWYwd6BCJVOwN9UTpRZAJsDn5SclQ+DyYAZlI' at line 1]
insert into demo_cookie(userid,cookies) values(,'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')