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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Uncle Sam refer to the Federal government of United States.
Explanation:
The Spanish-American War ended in December, 1898, when Spain surrendered to the U.S. and negotiated a peace treaty that sold Guam, Puerto Rico, and the Philippines to the U.S. Cuba remained independent, but strongly under the influence of the United States. The Philippine Republic went to war against the U.S. to defend its independence. The brutal war lasted three years, and was followed by a half-century of U.S. occupation of the Philippines
Uncle Sam (U.S.) is a common national imagery of the U.S. federal government or the country in general that came into use during the War of 1812.
Answer: The styles of suits worn by young boys in the Romantic period include:
skeleton suits
tunic suits
Eton suits
Answer:
<h2>National Benchmark Teats</h2>
Answer:
Central America is a narrow isthmus that is bordered by North America and the Gulf of Mexico to the north and by South America to the south. ... The Caribbean Islands are another region that are considered part of the continent of North America. They are located in the Caribbean Sea to the east of Central America.
