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hello everyone and welcome to another sql query training session with learn at no star in todays video we are going to write a sql query to find out how many employees were hired by a company in the last n months so lets get started we are going to be working with a very simple table called the emp table or the employee table it has got three columns first name last name and higher date now ive provided all the details about creating this table and inserting the data as you see over here in this table so the create statements and then search statements are provided in the description box below so you can go ahead and create your own table and then practice the queries that were going to learn in this video so going back to the data we need to find out the employees who were hired in the last n months now n can be any number so lets say it is 5 for us so what were going to use to frame that query is a date function and that date function is called the date difference the date diff