Re: What is a tuple?

On Tue, 25 Jun 2002, Timothy Reaves wrote:

>     A 'tuple' is not a database - nor PostgreSQL - term.  It is a
> mathimatical term meaing a set.  Withen the context of databases, a tuple
> is always a row.  'Tuples' refers to the tuple set, or row set.

  And, in the same mathematical language of relational databases, what we
commonly call a "table" is a "relation". "Columns" are called "attributes".

  A good database management book will teach you the vocabulary.

Rich

Dr. Richard B. Shepard, President

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