Hello Guys...
thanks in advance jst wondering if any1 knows answer to this....
if this is the SQL query
Author(name, hometown, publisher)
Textbook(tname, aname, price)
select A.name, publisher from Author A, Textbook T
where T.aname = A.name and not exists (select * from Textbook S
where S. price > T.price);
What would be an efficient relational algebra????? so that...
scorpiomailin
Last Activity: Oct 12 '06, 02:07 PM
Joined: Oct 12 '06
Location:
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Help with Relational Algebra
-
Help with Relational Algebra
Hello Guys...
thanks in advance jst wondering if any1 knows answer to this....
if this is the SQL query
Author(name, hometown, publisher)
Textbook(tname, aname, price)
select A.name, publisher from Author A, Textbook T
where T.aname = A.name and not exists (select * from Textbook S
where S. price > T.price);
What would be an efficient relational algebra????? so that...
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