Pleаse write а Relаtiоnal Algebra query expressiоn tо retrieve the first name and last name of employees who have no dependents. Write the query in a single line expression. Use ( ) correctly to enclose inner operations and concatenate them correctly.. To include an algebra operation enter the English name (no Greek letters are needed): Select, Project, Rename, Union, Intersection, Minus, Cross Join, Join, Outer Join, ScriptF. You need to provide the required operator with the corresponding relation and attributes needed for that operator, e.g. Select a>b (Relation1) and write the complete expression: Result
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