Nullology /

"Nullology is the study of the empty set. Sets per se crop up all over the place in the relational world; the question is -- and it's a crucial one -- what happens if the set under consideration happens to be empty? For example, a relation contains a set of tuples: what about the possibili...

Descripción completa

Detalles Bibliográficos
Clasificación:Libro Electrónico
Formato: Electrónico Video
Idioma:Inglés
Publicado: [Place of publication not identified] : O'Reilly Media, 2014.
Temas:
Database searching > Mathematics.
Data mining.
Statistics.
Internet videos.
Streaming video.
Data Mining
Vidéos sur Internet.
Vidéo en continu.
Bases de données > Interrogation > Mathématiques.
Exploration de données (Informatique)
Statistique.
streaming video.
statistics.
Streaming video
Internet videos
Data mining
Statistics
Electronic videos.
Acceso en línea:Texto completo (Requiere registro previo con correo institucional)
Descripción
Sumario:"Nullology is the study of the empty set. Sets per se crop up all over the place in the relational world; the question is -- and it's a crucial one -- what happens if the set under consideration happens to be empty? For example, a relation contains a set of tuples: what about the possibility of a relation containing no tuples at all? Now, this particular possibiloty is reasonably familiar, because a relation with no tuples behaves much like a file with no records. But even in this case, there are some interestng aspects to consider that are probably unfamiliar to most database professionals. And there are many other places in the relational world where the empty set rears its head, several of them both unfamiliar and of fundamental importance."--Resource description page.
Notas:Title from title screen (viewed December 18, 2014)
Date of publication taken from resource description page.
Descripción Física:1 online resource (1 streaming video file (1 hr., 4 min., 31 sec.)) : digital, sound, color.
ISBN:9781491908822
1491908823

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