Give a definition of referential integrity constraint
What will be an ideal response?
In each row of a relation containing a foreign key, the value of the foreign key either matches one of the values in the primary key column of the referred relation, or the value of the foreign key is null (empty).
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A trial balance summarizes the ledger by listing all the accounts with their balances at a point in time
Indicate whether the statement is true or false
Knapp Roofing Company has estimated the following amounts for its next fiscal year
Total fixed costs $840,000 Sale price per unit 80 Variable cost per unit 30 If the company spends an additional $35,000 on advertising, sales volume would increase by2,500 units. What effect will this decision have on the operating income of Evans? A) Operating income will decrease by $90,000. B) Operating income will increase by $90,000. C) Operating income will increase by $200,000. D) Operating income will increase by $125,000.