Question: SOLVE IT BY RELATIONAL ALGEBRA SYMBOLS NOT CODING Exercise 1: Write the following queries in Relational Algebra for the COMPANY database: a) Retrieve the first

SOLVE IT BY RELATIONAL ALGEBRA SYMBOLS NOT CODING Exercise 1: Write the following queries in Relational Algebra for the COMPANY database: a) Retrieve the first name and last name of all employees who work for all departments except the HR department. 1 answer

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