Consider the following relation schemaSailors(sid, sname, rating, age)Reserve(sid, bid, day)Boats(bid, bname, color)What is the equivalent of following relational algebra query in SQL query.πsname((σcolor= ‘red’Boats) ⨝ Reserves ⨝ Sailors)

SELECT S.sname, S.ratingFROM Sailors S, Reserves RWHERE S.sid = R.sid AND R.bid = B.bid AND B.color = ‘red’

SELECT S.snameFROM Sailors S, Reserves R, Boats BWHERE S.bid = B.bid AND B.color = ‘red’

SELECT S.snameFROM Sailors S, Reserves R, Boats BWHERE S.sid = R.sid AND B.color = ‘red’

SELECT S.snameFROM Sailors S, Reserves R, Boats BWHERE S.sid = R.sid AND R.bid = B.bid AND B.color = ‘red’

Consider the following relation schemaSailors(sid, sname, rating, age)

1.	Consider the following relation schemaSailors(sid, sname, rating, age)Reserve(sid, bid, day)Boats(bid, bname, color)What is the equivalent of following relational algebra query in SQL query.πsname((σcolor= ‘red’Boats) ⨝ Reserves ⨝ Sailors)
A.	SELECT S.sname, S.ratingFROM Sailors S, Reserves RWHERE S.sid = R.sid AND R.bid = B.bid AND B.color = ‘red’
B.	SELECT S.snameFROM Sailors S, Reserves R, Boats BWHERE S.bid = B.bid AND B.color = ‘red’
C.	SELECT S.snameFROM Sailors S, Reserves R, Boats BWHERE S.sid = R.sid AND B.color = ‘red’
D.	SELECT S.snameFROM Sailors S, Reserves R, Boats BWHERE S.sid = R.sid AND R.bid = B.bid AND B.color = ‘red’
Answer» E.

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Consider the following relation schemaSailors(sid, sname, rating, age)Reserve(sid, bid, day)Boats(bid, bname, color)What is the equivalent of following relational algebra query in SQL query.πsname((σcolor= ‘red’Boats) ⨝ Reserves ⨝ Sailors)

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