The entity integrity rule states that a primary key attribute can be null. Thus the statement is false.
<h3>What is an entity?</h3>
An entity is refer to any object that exists in reality. These entities are Independent in nature. Each row in a table should be a distinct entity, which is ensured by entity integrity.
The entity integrity rule states that a primary key attribute can not be null as it shows unique characteristics of an entity.No primary key value can be null according to the entity integrity constraint because it is needed to identify specific attribute values in relation.
Therefore, the statement is False.
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Answer:
I think its 75000 + 75000
Explanation:
because 75000 is on and i search web
Answer: Speciality store
Explanation: These are retail stores that offer specialised goods, and these goods can be different, meaning not just a specialised liquor store, but a specialised store of any good, say, baby food. Such shops usually have discounts and they are characterised by small differences between products, i.e. narrow variety. Also, these stores offer variety within the category of products they sell, hence a wide selection of similar products. So whether a store is specialised is not determined by the type of product being sold, but by the breadth of choice within the product category.
Answer:
The right answer is A) True
hope i helped :)
Answer:
Two negative effects of deflation 1 increase unemployment 2 decreases in Demand
