Limit the query results to records where the students date of birth is less than or equal to them.

Follows are the solution to this question:

Explanation:

The following are the steps to solve the query:  

In this question first, we know about the date of birth. so, we assume that the date of birth "DOB" value is "1-Jan-1998". To check the date of the birth value we must go to the DOB field and set criteria in the row value. To set the criteria, we first changed the date of birth fields by applying the condition that is "DOB <=DOB". The above condition changes the design of the Ribbon Tab, and when we click on the run button it shows the value of the results on the ribbon group.