Question
Draw a query tree for the following relational algebra query. sid, sname, age(age <30(color=Red( bid=bid(B x sid=sid)S x R))))) Where: S represents Sailors (sid, sname,
Draw a query tree for the following relational algebra query.
sid, sname, age(age<30(color="Red"( bid=bid(B x sid=sid)S x R)))))
Where: S represents Sailors (sid, sname, rating, age) B represents Boats (bid, bname, color) R represents Reserves (sid, bid, day, rname)
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Beginning VB 2008 Databases
Authors: Vidya Vrat Agarwal, James Huddleston
1st Edition
1590599470, 978-1590599471
