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History. On Columbus's first expedition, Niña carried 26 men, captained by Vicente Yáñez Pinzón.They left Palos de la Frontera on 3 August 1492, stopping at the Canary Islands on 12 August 1492, and continued westward.
The cuisine of the Southern United States encompasses diverse food traditions of several subregions, including Tidewater, Appalachian, Ozarks, Lowcountry, Cajun, Creole, African American Cuisine and Floribbean cuisine.
Dolzura Cortez (died 1992) was a Filipino AIDS victim. She was the first Filipino with AIDS to publicly discuss her life and her experience living with HIV/AIDS. [1] [2] Cortez responded to a newspaper ad looking for a person living with HIV/AIDS who was willing to have their life serialized in print and later developed into a movie.
Join (SQL) A Venn diagram representing the full join SQL statement between tables A and B. A join clause in the Structured Query Language ( SQL) combines columns from one or more tables into a new table. The operation corresponds to a join operation in relational algebra. Informally, a join stitches two tables and puts on the same row records ...
The hash join is an example of a join algorithm and is used in the implementation of a relational database management system.All variants of hash join algorithms involve building hash tables from the tuples of one or both of the joined relations, and subsequently probing those tables so that only tuples with the same hash code need to be compared for equality in equijoins.
Relational algebra. In database theory, relational algebra is a theory that uses algebraic structures for modeling data, and defining queries on it with a well founded semantics. The theory was introduced by Edgar F. Codd . The main application of relational algebra is to provide a theoretical foundation for relational databases, particularly ...
Airborn is a 2004 young adult novel by Kenneth Oppel. The novel is set in an alternate history where the airplane has not been invented, and instead, airships are the primary form of air transportation. Additionally, the world contains fictional animal species such as flying creatures that live their entire lives in the sky.
The block nested loop join algorithm [2] is a generalization of the simple nested loops algorithm that takes advantage of additional memory to reduce the number of times that the relation is scanned. It loads large chunks of relation R into main memory. For each chunk, it scans S and evaluates the join condition on all tuple pairs, currently in ...
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