Please follow the steps below to query employees' salaries :
Go to the Core module, click Query Setup and click New.
Enter a Query name eg, Random Employee, and enable Use Custom Query.
Click the three-dotted button and double-click Current Basic Rate in the Custom Query window.
After the PayEmployee.CurrentBasicRate select >=.
Enter 5000 and click Save.
Close the window and click Apply.
It should appear like this PayEmployee.CurrentBasicRate >= 5000