TRACKING CHANGE DATA IN A DATABASE

摘要

Methods and systems are disclosed for tracking change data in a database. A database, stored at a computer system, is accessed with a plurality of data written to fields in the database, wherein each data in the fields comprises a record header. Data is changed in at least one field of the plurality of data in the database via the computer system, wherein the changing the data changes the record header for the at least one field. A transaction identification (ID) is stored in the record header for each change to the at least one field. A flag is created in the record header signaling the change to the at least one field. Successive versions of the database are linked together such that a subscriber accessing the database can automatically view a current version of the database with the change by accessing the record header and identifying the flag.

主权项

1. A method for tracking change data, said method comprising:
accessing a database, stored at a computer system, with a plurality of data written to fields in said database, wherein each data in said fields comprises a record header; changing data in at least one field of said plurality of data in said database via said computer system, wherein said changing said data changes said record header for said at least one field; storing a transaction identification (ID) in said record header for each change to said at least one field; creating a flag in said record header signaling said change to said at least one field; and linking successive versions of said database together such that a subscriber accessing said database can automatically view a current version of said database with said change by accessing said record header and identifying said flag.