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Engineering · Computer Science
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Basic Retrieval Queries Query 1. Retrieve the name and address of all employees who work for the Research department. Q1: SELECT Fname, Lname, Address FROM EMPLOYEE, DEPARTMENT WHERE Dname Research AND Dnumber-Dno; In the WHERE clause of Q1, the condition Dname Research is a selection condition that chooses the particular tuple of interest in the DEPARTMENT table, because Dname is an attribute of DEPARTMENT. The condition Dnumber Dno is called a join condition, because it combines two tuples: one from DEPARTMENT and one from EMPLOYEE, whenever the value of Dnumber in DEPARTMENT is equal to the value of Dno in EMPLOYEE. John Smith 731 Fondren, Houston, TX Franklin Wong 638 Voss, Houston, TX Ramesh Narayan 975 Fire Oak, Humble, TX Joyce English 5631 Rice, Houston, TX

in the join clause if I switch Dnumber with Dno like this - - > Dno=Dnumber
would I get a different result?

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