Find the Join of the 3 -Ary Relation

question 47

Essay

Find the join of the 3 -ary relation
{ (Wages,MS410,N507 ),(Rosen, CS540,N525), (Michaels, CS518,N504), (Michaels,MS410,N510)}
and the 4 -ary relation
{(MS410,N507,Monday, 6: 00),(MS410,N507,Wednesday, 6: 00),(CS540,N525, Monday,7:30),
(CS518,N504,Tuesday,6:00), (CS518,N504,Thursday,6:00) }
with respect to the last two fields of the first relation and the first two fields of the second relation.

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Definitions:

Income Before Taxes

An entity's earnings before tax is assessed, representing the profit generated from all operations before tax expenses.

Operating Revenues

Operating Revenues are the income earned from a company's core business operations, excluding non-operating income sources like investments.

Income Tax Expense

The amount of money a company owes in taxes based on its taxable income.