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Home -> Community -> Usenet -> comp.databases.theory -> c.d.theory glossary
Here is a start.
"Rows by any other name would smell as sweat" - Laconic2
[Class]
A class is what provides a name and a place for
the abstract behavior of a set of objects
said to belong to the class. (Larry Wall, Apocalypse 12)
[Database]
1. Deluxe filesystem
2. Shared databank (E. Codd)
[Entity]
Thing of interest. (ISO)
[Function]
A binary mathematical relation with at most one b for each a in (a,b).
A many-to-one relation of ordered pairs that maps each a to a unique b.
It is important to note that every function is, by definition, a relation.
[MultiValue, MV]
1. One name for the industry surrounding the Nelson-Pick data model.
2. A data field (or attribute) defined to permit a variable number of values as a list (array).
[Object]
1. Something intelligible or perceptible by the mind.
2. Model of an entity, characterised by behaviour and state. (ISO)
[[ToDo]]:
Domain
Normalize
NULL
Persistence
Relation
Type
[[Maybe Todo]]
Necessary? Though obviously possible,
I haven't seen misunderstandings regarding these:
Formal Theory
XML
Thank you for contributing,
HTH
P.S. 1
If it is appreciated, I'll post the glossary once in a while.
P.S. 2
Should I include credits?
Received on Sat Apr 17 2004 - 16:08:47 CDT
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