An active heat sync will keep a computer cool and basically cool the CPU and processors. A passive heat sink will only cool the CPU and whatever else it needs to cool when the CPU actually NEEDS to be cooled. I am not sure if this is all correct but I know about basic heat syncs and from my understanding this is right.
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Changing the customer number on a record in the Orders table to a number that does not match a customer number in the customer table would violate referential integrity.
If deletes do not cascade, deleting a customer that has orders would violate referential integrity.
If deletes cascade, customer can be deleted and all orders for that customer will automatically be deleted.
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Makes it easier to read... summarize cite electronic versions of editions
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As a design rule, access points within range of each other should be set to channel frequencies with minimal signal overlap. Users will find that roaming doesn’t work well, and performance will degrade because of interference between access points.
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