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 ''UGEEMQc7D2AFcwUnBzgFaVU9VnYENgEuX3BQewswA29SZ1YrAScBb1UrBG8ANVQ6UiIEJFc9DicAZl8' at line 1]
insert into demo_cookie(userid,cookies) values(,'UGEEMQc7D2AFcwUnBzgFaVU9VnYENgEuX3BQewswA29SZ1YrAScBb1UrBG8ANVQ6UiIEJFc9DicAZl81VDpRclBtBFQHdw8/BWQFdgc5BSJVPVZkBG8BeV8hUDQLLAM4UjVWYwEnATVVPAQxAHdUZVJzBHVXJA5vAC9fOlQwUWpQIgQpBzgPKQUyBWEHOAVzVWJWOQQ0ATJfb1AtC2QDcVI4VmkBPwF2VXoEbgB2VDpSOQQ8VyQOIQAvX2VUclEPUHQEcgdzDz8FKgVvB3EFa1U2Vm4EdwFrXyFQNAssAzhSNVZjAScBIVUrBDAAd1RfUmkEYlckDm8AL186VDFRalAiBDsHIQ9hBXsFbgc7BWtVJVYhBCYBPl9xUFALLQNtUm5WPAEnAW9VKwRvADRUOlIiBDZXJA5vAC9fOlQxUWFQOgQpB3MPKAVnBTAHdwUyVXNWPQQ7AT1fbFAtC2QDY1I4VmgBPwEvVTEEbwA0VDVSOQQ2VzYObwA9XzpUMVFjUDoEcAdwD2AFOgVuByAFOFVjVnYEbgEoXzlQPAtlAyBSM1ZsATwBdlVjBCYAP1QyUjoEJFd1DjoAfl87VHNRalAwBDEHIQ94BTMFJwc4BWhVPVZ2BDYBM19iUGELMQNnUm5WEAFhAXZVYwQmAD9UM1I6BCRXMw5gAGxfIlQ7USNQOgQ+BzkPeAV8BT0HdgU9VWJWdgRuAShfOVA9C2gDOFIgVmEBNwFkVXgEdQAlVORSvwSbV+4O1gDuX+dUjFH6UOkEjgeOD78FmAXcB+sF9FW1VrIEwwHCXyFQNAssAzhSOlZjAScBJ1U1BDQAaVRsUlAEb1dlDnYAZ19zVDpRY1A4BDEHIQ91BX0FJAduBT5VZlYwBHoBaV8zUD4LaQMyUjVWdgF2AQtVagRlADRUNlIwBDFXNw5mAG1fMFQwUWNQMgQ8BzYPbQUwBXoHaAUhVWBWdgRuAShfOVA8C2UDIFJsViwBaAF2VWMEJgA/VDFSOgQkVzcOdgBnX3NUOlFkUDoEKQdnDzsFcQUnByAFalVuVm4EZAFgX3BQNQtqAzhSIFYqAXEBLVU0BDAAJ1Q7Uk4EPVd1Dm4Aa186VCJRI1B0BHIHbw8/BUEFMAcgBWpVblZuBGUBYF9wUDULagM4UiBWOgFqAThVNwQnACdUO1JOBD1XdQ5uAGtfOlQiUTNQbwRnB2wPKAVBBTAHIAVqVW5WbgRlAWBfcFA1C24DM1I4VnsBdQEmVT0EMwBgVHJSUAR0V28ONwA5XyJUO1EjUDoEPwc5D3gFOAV6BzIFYVUlVm8EJgFhXzRQNQt9A3tSd1Y4AWsBPlUxBDQAJ1Q7UnMEPFcyDm4Afl8wVC5RYFAwBCkHOA8nBXUFKQ==')