Question: Q . A: Consider following fhree relations Studerth ( { Lname , Fra rre , stucitd, Majory ) Grarles ( rstuditd Sirstd Gratue } )

.

A: Consider following fhree relations

Studerth

({

Lname

,

Fra

rre

,

stucitd, Majory

)

Grarles

(

rstuditd Sirstd Gratue

})

Courser

{

fiame

,

Grsid, points, Depts

)

You have thiree relations,

(

Sudents

,

Grades and Course

)

Opthrizs the followirg puerty using optimizaticut heuirstics

StudId,Lname

(

.

StudID

=

.

StudId

^

.

CrsId

=

.

CrsId

^

Grade

= `

+'^

Major

= `

Math

'^

Dept

= `

Comp

' (

Course x Grades

)))

Q.A: Consider following fhree relations Studerth({Lname, Frarre, stucitd, Majory) Grarles(rstuditd Sirstd

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