Granularity of Locks and Degree of Consistency in a Shared Data Base – Part I

Granularity of Locks and Degree of Consistency in a Shared Data Base - Gray et al. 1975 This is part 2 of a 7 part series on (database) 'Techniques Everyone Should Know.' This is a paper of two halves, connected by the common theme of locking. The first part of the paper examines the tradeoff … Continue reading Granularity of Locks and Degree of Consistency in a Shared Data Base – Part I

Access Path Selection in a Relational Database Management System

Access Path Selection in a Relational Database Management System - Selinger et al. 1979 This is part 1 of a 7 part series on (database) 'Techniques Everyone Should Know.' System R was a very influential Relational Database Management System (RDBMS) built at the IBM San Jose Research Laboratory starting in 1975. This paper introduces the … Continue reading Access Path Selection in a Relational Database Management System