Can you do an aggregate function in the where clause of an SQL statement.?
NO, no aggregate functions can be done in a where clause. A simple avoidance of this issue is to do a group by followed by a having statement. A having statement can contain an aggregate function.
What is the importance of a primary key?
A primary key denotes a uniquely identifying attribute of an entity. The primary key helps to identify different tables in a relational database.
Please find the slope at point x = 5 for the equation x^3 + 5x^2 - 2 = f(x).