sql - Give a list of all employees, fname, lname and dept, who make more than the average in their building -


but only if they work in the creation of 400, 402 or 405 

  Fname, lname, employees recruited, where building = 400 and building = 402 and building = 405;   
 So if I get the AGG, then I have to figure out which numbers in SQL or what, can I use the AVG () function to find the answer? I think to use the subquery, but do not know how, help!  
  
 
 
  select fname, lname, where employee (400,402,405) and salary & gt; (Where average salary from the employees' building (400, 402, 405));   
 Whereas the "salary" employee makes the column is  
 Besides, your statement is wrong, I have edited for you.  
 Outside the subject question: Are you working in human resources and trying to find some officers who earn more to others, the company said to reduce the cost?

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