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View all- Mohan C(1978)An overview of recent data base researchACM SIGMIS Database: the DATABASE for Advances in Information Systems10.1145/2579474.257947610:2(3-24)Online publication date: 1-Sep-1978
Many database systems guarantee some form of integrity control upon multiple concurrent updates by some form of locking. Some “granule” of the database is chosen as the unit which is individually locked, and a lock management algorithm is used to ensure ...
Locking granularity refers to the size and hence the number of locks used to ensure the consistency of a database during multiple concurrent updates. In an earlier simulation study we concluded that coarse granularity, such as area or file locking, is ...
A safe and deadlock free lock policy is introduced, called pre-analysis locking. Pre-analysis locking is based on an efficient geometric algorithm which inserts lock and unlock operations into the transactions. Pre-analysis locking is the first safe and ...
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