Answer to Question #159696 in Databases | SQL | Oracle | MS Access for Anonymouse

Question

Convert these queries to relational algebra expressions

a) select rackets

from Qaza

where NAME="A";

b) SELECT COUNT (name)

from female

where question1=Null

c) SELECT Count(SALAH)

From SALAH

WHERE follow=false

d) select AVG(time)

from prayer

where name ="M.Noman"

e) SELECT name

from slalah

where repetation=max

f) select name

from salah

where repetation<max

Answer 1

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