Question: Exercise 2 (relational algebra, 4 pts) Write the following queries for Hardware Database in relational algebra: Find those makers that produce laptops, but not PCs.

Exercise 2 (relational algebra, 4 pts) Write the following queries for

Exercise 2 (relational algebra, 4 pts) Write the following queries for Hardware Database in relational algebra: Find those makers that produce laptops, but not PCs. Find all makers of printers that are cheaper than $150 1. 2. Exercise 2 (relational algebra, 4 pts) Write the following queries for Hardware Database in relational algebra: Find those makers that produce laptops, but not PCs. Find all makers of printers that are cheaper than $150 1. 2

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