A Client/Server Database System with improved methods for enhancing concurrency using a "row update" bit and deferred locking is described. Data rows in the system are designed to include ROW_DELETE and ROW_UPDATE status bits. When a transaction updates a row, it sets the ROW_UPDATE bit. When a transaction...http://www.google.com.au/patents/US6363387?utm_source=gb-gplus-sharePatent US6363387 - Database system providing methodology for enhancing concurrency using row update bit and deferred locking
