Relational algebra to SQL - SQL Server Forums

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Relational algebra to SQL

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Topic

Guiri
Starting Member

1 Post

Posted - 2008-11-24 : 13:24:11

Hi, I'm new to SQL and I would like to "translate" some relational algebra sentences to SQL language.

For example

A:= Category (priority=1)
B:= A x Article
C:= B (A.ID_category=article.ID_category)
R:= C [ID_article, description]

Any help?

robvolk
Most Valuable Yak

15732 Posts

Posted - 2008-11-24 : 16:06:08

This is a fairly good introduction using SQL Server:

http://www.microsoft.com/technet/prodtechnol/sql/70/books/relation.mspx

I don't know formal relational algebra well enough to say if it will answer your question though, you might have to do some Googling for more sources.

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