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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Gender identity is your own, internal, personal sense of being a guy or a lady (or as somebody outside of that gender binary). Sexual orientation describes a human enduring physical, romantic, and/or emotional attraction to a different person (for example: straight, gay, lesbian, bisexual).
Answer: Its location near the mouth of the Mississippi made it a prime target for the Union, both for controlling the huge waterway and crippling the Confederacy's vital cotton exports
Explanation:
Why was New Orleans so important to the confederacy? It provided access to the Mississippi River and if seized the confederacy would be crippled. ... Replaced butler as head in charge in New Orleans led union army at Mansfield.
