Return only the top $20$ percent of instructors based on annual salary.

$8.$ Write a SELECT statement that returns these column names and data from the Students table: LastName The LastName column FirstName The FirstName column

Return only the rows where the LastName column starts with the letter $\text{'}G\text{'}.$ To do that, use the LIKE phrase.

Sort the result set by last name in ascending sequence.

$9.$ Write a SELECT statement that returns these column names and data from the Students table LastName The LastName column

FirstName The FirstName column

EnrollmentDate The EnrollmentDate column

GraduationDate The GraduationDate column

Return only the rows where the EnrollmentDate column is greater than $12-01-2022$ and the GraduationDate column contains a null value.