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Consider employee (e_no, e_name, e_salary, d_code), dept(d_code, d_name) and dependent (depndt_name, e_no, relation). Show the names of employees in purchase and accounts departments with at least one dependent.
SELECT e_name FROM employee, dependent, dept WHERE employee.d_code=dept.d_code AND employee.e_no=dependant.e_no AND d_name IN (‘ACCOUNTS', ‘PURCHASE') GROUP BY e_name HAVING COUNT (e_no)>=1
What is object containment? References among objects can be used to model dissimilar real-world concepts.
What is Information System?
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Differentiate between Primary and secondary storage? Primary and secondary storage - Primary storage device stores the data temporarily. Primary storage is commonly used thro
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