DBMS Programming and Technical Programming Output

)Question on inner Join returning N- tuples & Full outer Join returns M- tuples. For both Variables are given & in options relationship is given to find whichever have greater tuples.And variable D is given----- a)then N= M b) N = M + D

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b) N = M + D
8 years agoHelpfull: Yes(3) No(2)

DBMS Other Question

employee(eno,ename) works_on(eno,pno,ename) project(pno, project) select ename from employee where eno in(select eno from works_on where pno =(select *from project) what is the output ?

a)Employee who works on all project. b)Employee who works one project . c) name of employee who works on more than one project. d)Select ename from employee where salary = salary What does isolation in Acid rules for transaction in database mean?
a)either the effects of whole transaction is reflected on database or database is rolled back to its original state
b)No transaction can interfere in the end result of another transaction
c)effects of a successful transaction must persist in a database
d)Every individual transaction must leave database in a cosistent state .maintaining the integrity of the database