The invention belongs to the technical field of
data processing, and relates to a data generation method and device,
computer equipment and a storage medium, and the method comprises the steps: when a business handling request triggered by a user in a business interface is received, displaying an input box; receiving a
bank card number input by a user in the input box; if the
bank card number passes the format
verification, when it is detected that the
bank card number reaches a length threshold value, whether a specified bank card number matched with the bank card number exists in a cache
database or not is judged; if not, performing bit-by-bit matching
processing on the bank card number based on the Hash mapping table, and obtaining a target
data value corresponding to the current target entry when the matching is successfully completed; and generating
issuing bank information of the bank card number based on the target
data value, and displaying the
issuing bank information on the service interface. The
issuing bank information can be stored in the block chain. According to the method and the device, the issuing bank information matched with the bank card number input by the user can be intelligently and accurately inquired, and the use experience of the user is improved.