Relational Algebra is an offshoot of first-order logic and of the algebra of sets that deals with relations (sets of tuples).
Suppose I have the following relations: Branch (branchNo(PK), street, city, postcode) Staff (staffNo(PK), fName, lName, sex, branchNo(FK)) …
sql relation relational-algebralet be a database having the following relational-schemes: R(A,B,D) and S(A,B) with the attributes of …
relational-algebraCould someone explain to me what is going on here and how to solve this problem? Suppose relation R(A,…
relational-algebra