To Group By Hire Date in SQL Server? -

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assume following table

employee

employeeid           int firstname            varchar(50) lastname             varchar(50) supervisoremployeeid int salary               money hiredate             datetime

  1. how show number of employees hired per year last 5 years include average salary employees hired in years.

  2. how show number of employees hired per year last 5 years include average salary employees hired in years.

checkout datepart function in sql. break , group dates based on interval supplied (ie. day, month, year, etc.)

sample: 

select     datepart(year,hiredate)     ,count(emplid)     ,avg(salary) employee datediff(year, hiredate, getdate) <= 4 group datepart(year,hiredate)  order datepart(year,hiredate) asc

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