Examlex
There are three set operations: union, intersection, difference. Define each of these operations. Which one(s)does MySQL support?
Sound Waves
Vibrations that travel through the air or another medium and can be heard when they reach a person's or animal's ear.
Frequency
The rate at which a recurring event happens, typically measured over a particular period of time.
Amplitude
The maximum extent of a vibration or oscillation, measured from the position of equilibrium.
Size Constancy
The perceptual understanding that an object's size does not change, despite variations in the distance from the observer, ensuring a consistent perception of size.
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