367 views
3 votes
3 votes
Which of the following is used to write both safe and unsafe expression?

(A) SQL
(B) Relational Algebra
(C) Relational Calculus
(D) Both B and C

2 Answers

Related questions

1 votes
1 votes
0 answers
1
1 votes
1 votes
1 answer
3
Shivam Kasat asked Dec 19, 2018
501 views
the table “Sales89” contains information about the address,zip,sale-date,price and inflamation-adjusted “real-price” of 222 sales of single family homes in calcut...