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Determine the rule that a value of a foreign key should appear as a value of some particular table is called a
Ans: Referential constraint.
The rule that a value of a foreign key should appear as a value of some particular table is known as a referential constraint. (Referential integrity constraint is referred with foreign key).
1. Item based services will be charged fixed prices, and time-based will be charged variably depending on time. Such as per hour. Item-based: Fixed, pedicure, waxing, threading, fa
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