Help New To DB

From: Adam Kingston <akingston888_at_hotmail.com>
Date: Mon, 25 Feb 2002 07:53:45 -0500
Message-ID: <a5db5v$fb8$1@slb6.atl.mindspring.net>

I am self-studying with a relational DB book. Let's say:
Table X has attribute A, B, C
Table Y alsa has attribute A, B, C
A,B,C are common attributes.

The book teaches relational algebra and calculus but doesn't have much examples on Oracle's SQL.

I would like to learn how to convert the following expression (for example) into SQL with Oracle DBMS.

projectA(projectB(projectC(X union Y)))

Thanks. Received on Mon Feb 25 2002 - 06:53:45 CST