Two-phase locking — This article is about concurrency control. For commit consensus within a distributed transaction, see Two phase commit protocol. In databases and transaction processing two phase locking, (2PL) is a concurrency control method that guarantees… … Wikipedia
Locks on the C&O Canal — The Locks on the C O Canal, located in Maryland, West Virginia, and Washington, D.C. of the United States, were numbered from 1 to 75 with two locks, 63⅓ and 64⅔, having fractional numbers and no lock 65. There is also a lock at the downstream… … Wikipedia
Locks-and-keys — is a solution to dangling pointers in computer programming languages.The locks and keys approach represents pointers as ordered pairs (key, address) where the key is an integer value. Heap dynamic variables are represented as the storage for the… … Wikipedia
Two phase locking — In databases and transaction processing, two phase locking, (2PL) is a concurrency control locking protocol, mechanism, that guarantees serializability. It is also the name of the resulting class (set) of transaction schedules. Using locks that… … Wikipedia
Two-phase commit protocol — In computer networking and databases, the two phase commit protocol (2PC) is a distributed algorithm that lets all nodes in a distributed system agree to commit a transaction. The protocol results in either all nodes committing the transaction or … Wikipedia
Two-man rule — The two man rule is a control mechanism designed to achieve a high level of security for especially critical material or operations. Under this rule all access and actions requires the presence of two authorized people at all times. Contents 1… … Wikipedia
Locks of Love — This article discusses the charitable organization. For the custom of using locks as tokens of love, see love padlocks Locks of Love is a non profit charity based in the United States. The organization accepts donations of human hair and money,… … Wikipedia
Locks on the Kennet and Avon Canal — There are a total of 105 locks on the Kennet and Avon Canal along its 87 miles (140 km) length from Bristol to the River Thames, including 6 on the navigable section of the River Avon from Bristol to Bath and 9 on the navigable section of the… … Wikipedia
Hiram M. Chittenden Locks — Chittenden Locks and Lake Washington Ship Canal U.S. National Register of Historic Places … Wikipedia
Cannelton Locks and Dam — Infobox Dam dam name=Cannelton Locks and Dam caption= official name= crosses=Ohio River reservoir= locale= maint=United States Army Corps of Engineers Louisville District length=1,827 ft (556.9 m) height= width= began=July 1963 open=December 1966 … Wikipedia
