SQL add a column of binary values based on values from another table

Question

I am new to SQL. Here is my question: I get two temporary tables:

I want to add a new column to the first table to see if employee's score meets his position average.

Can someone help me with the code?

Thank you so much

Answer 1

You can join the information and compare the Performance with Avg

select Employee, JobPosition, [Performance Score], [Ave. Performance]
, case 
    when Emp.[Performance Score] >= [Ave. Performance] then 'Meet' 
    else 'Does not meet'
  end AS PerfResult
from Emp
    inner join Perf on Perf.JobPosition = Emp.JobPosition