Is there any error in executing the following MySQL command? SELECT emp_id, ‘ACTIVE’, emp_id * 3.145, UPPER (lname) FROM Employee;

Answer: Option B

This question is asking if there is an error in the given MySQL command. Let's break it down:
The command is a SELECT statement, used to retrieve data from the Employee table.
It specifies the columns to retrieve:
* emp_id: This column is directly selected.
* ‘ACTIVE’: This is a literal string, meaning it will be returned as is for every row.
* emp_id * 3.145: This calculates the product of emp_id and 3.145.
* UPPER(lname): This applies the UPPER function to the lname column, converting it to uppercase.
Looking at the code, there are no syntax errors. All parts of the command are valid MySQL syntax.
Therefore, the correct answer is Option B: NO.