US Patent 10394795 Synchronized capture of transactional data from multiple journals

The present disclosure relates generally to electronic data, and more particularly, to techniques for synchronizing the capture of change data from multiple transaction journals. In various embodiments, a technique includes writing of discrete markers in the individual journals to facilitate the determination of consistent read points across the various journals to eliminate the effects of memory or disk caching that may interfere with the proper sequential ordering of transactional data across the individual journals in a single transaction processing program.