Methods and computer systems are provided for updating structured data. In one implementation, a system is provided that comprises a database with a set of data stored therein, at least one host computer connected to the database via a database interface, an application program adapted to be run on the host computer and interacting with the database, and a search engine connected to the application via an application program interface. The search engine may include a main memory for storing a subset of data of the set of data as an initial load. Further, the system may include a recording element to retain a record of any changes to the subset of data occurring in the database since the storing of the subset in the main memory as initial load, wherein the record of changes serve as a basis for updating the initial load.