Safe card signing method for intelligent card database application system

Security check card method of smart card database application system, comprising the steps of: (1) read the smart card information on the write flag in the smart card is detected; (2) save the smart card the raw data to the database; (3) open database transactions; (4) update the database operation; (5) disposed within the smart card is a write flag; (6) on the smart card update operation; (7) will be saved in the database smartcard original data status flag modification is processed; (8) Commits the database transaction; (9) clears the write flag, smart cards, smart card check card is completed. The use of database transaction processing, business process to ensure that data processing state stored in the database of the smart card of the original data warehousing and submit the state consistent, prevent dirty data contains a smart card in use.