1,558 views
0 votes
0 votes
Consider two relations R1 , R2 with N1 and N2 tuples where N2 > N1 > 0, what are the minimum and maximum rows for the RA expression R2/R1  ?

2 Answers

0 votes
0 votes
  • The expression for MINIMUM NUMBER OF number of tuples in R1/R2 will be 0.
  • The expression for maximum  number of tuples in R1/R2 will be N1/N2.

Related questions

0 votes
0 votes
1 answer
1
nishitshah asked Jan 2, 2018
630 views
The solution says that it should return 50 tuples. But I think it should be 10 as the selection query is on the relational algebra.Please need your help to clear this con...
0 votes
0 votes
0 answers
4
gatecrack asked Dec 10, 2018
482 views