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Question : Question Description: Here the ERD, I have several relation schema, staff(eno, ename, title) specialty(scode, sname) patient(ssn,

Question

Description:

Here is the ERD,

I have several relation schema,

staff(eno, ename, title)

specialty(scode, sname)

patient(ssn, pname, dob, address, icode)

diagnosis(scode, dcode, charge)

visit(ssn, date, eno)

expertise(eno, scode)

appointment(ssn, date, time, duration, eno)

outcome(ssn, date, scode, dcode, ipay, ppay)

My question is, to use relational algebra, could you get

C Ch 2 1 1 * Y have O'" Ed) (ENN Few Stat - spe . Set to pusial Monto kay patie key Patius, Aimchedule date dates patient Icodo SN) in Noe LA D»

 

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Computer Science 4 Months Ago 8 Views
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