Edited by Donald Ort, University of Illinois at Urbana Champaign, Urbana, IL; received December 10, 2024; accepted January 28, 2025 ...
#1. Display all records from the employee table. SELECT * FROM employees; #2. Show employees names and salaries only. SELECT emp_name, salary FROM employees; #3. List all departments from the ...
/* Question 9:What is the Difference Between a Primary Key and a Foreign Key? Ans 9: - A Primary Key uniquely identifies each record in a table. - It cannot contain NULL values and must be unique. - ...
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