SealDbMysql: You have an error in your SQL syntax, check the syntax:
SELECT CHECKID, RECEIVER_UID, MESSAGE_ID, SENDER_UID, SEND_MESSAGE_ID, CONTENT, SENT_TIME, IS_AVAILABLE, IS_CHECK, MESSAGE_TYPE, RELATION_TYPE, SEND_MESSAGE_ID2, SEQ FROM DB_CHECK.DDW_MAILFRIEND_CHECK WHERE CHECKID =