Freezer has a temperature below freezing point (0 degree F) while refrigerator has a temperature of 40 degree F. At freezing point, the enzymatic activities stop thus meat and meat products that have very less shelf life are stored in the freezer. Frozen food can be stored for months inside the freezer. In case of a refrigerator the enzymatic activities still take place and it is not used for storage purposes.
Thus, uncooked hamburger meat can be stored in a freezer for months rather than in a refrigerator.
Explanation:
Advantage is profit easy to earn money etc
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We write this trigger in Oracle SQL in a following way;
CREATE TRIGGER NewPrinterTrigger
AFTER INSERT ON Printer
REFERENCING
NEW ROW AS NewRow,
NEW TABLE AS NewStuff
FOR EACH ROW
WHEN (NOT EXISTS (SELECT * FROM Product
WHERE Product.model = NewRow.model))
DELETE FROM Printer
WHERE (model, color, type, price) IN NewStuff;