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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Answer:
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Conflict theorists were critical of parsons's structural functionalist theory because they argued it presented <u>"an unrealistic image of consenus and harmony in society."</u>
Structural functionalism is the theoretical viewpoint that looks to comprehend the capacity that every part of culture plays in supporting the structure of a general public. In trying to do this, one of its fundamental premises is the possibility that people and culture work with a specific end goal to help the structure of their general public. As a structural functionalist, Parsons was, extremely keen on the possibility of social request. In the same way as other of his auxiliary functionalist cohorts, he held to the utilitarian hypothesis of stratification, the possibility that various leveled class frameworks and requests were essential for society to work.
Answer:
Presence or absence of Pregnancy can only be confirmed through a test. It is very important to know because of the danger of hyperthyroidism in pregnancy
Explanation:
Ms. A could be pregnant without know especially if she is sexually active, and only test can prove that. Hyperthyroidism can cause grave complications during pregnancy. Hence the need to be sure if Ms. A is not pregnant
