The answer is Count. Count is an aggregate method in SQL that returns the number of rows for a specified column that have non-null values.
<h3>What is the Meaning of Null?</h3>
When a field in a database has no values at all, this is known as null and indicates that the field’s value is unknown.
A null value for a number field, text field, or space value is different from a zero value. Null indicates that no value has been recorded in a database field.
A value and a null cannot be compared. The Structured Query Language query cannot be written as SELECT * FROM Customer where email Address=null, for instance, if it is intended to obtain all customers without email addresses from a Customer Addresses table.
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<span>A. demand
Demand is t</span><span>he general willingness of consumers to purchase a product at various prices.</span>
True, because as time goes on, cultures mix and evolve according to what resources are available.
Answer:
Sustainable development empowers the public and ensures their participation in development activities. It sustains biodiversity and maintains financial stability. Sustainable development emphasizes social progress developing health,education, agriculture, and social development.
Explanation:
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A command economy is when the dictator or ruler takes control of the market.
