diff --git a/salary_stats.sql b/salary_stats.sql
index 373620e..fa3e124 100644
--- a/salary_stats.sql
+++ b/salary_stats.sql
@@ -1,25 +1,19 @@
 -- Display no. of employees with salary > avg, < avg and = avg
 set serveroutput on 
 declare
-   v_avg_salary employees.salary%type;
    v_high number(2);
    v_same number(2);
    v_low number(2);
 begin
-   select avg(salary) into v_avg_salary
-   from employees;
    
-   select count(*) into v_high
-   from employees
-   where salary > v_avg_salary;
-   
-   select count(*) into v_same
-   from employees
-   where salary = v_avg_salary;
-   
-   select count(*) into v_low
-   from employees
-   where salary < v_avg_salary;
+   select count(case when salary > avg_salary then 1 end), --more than average
+          count(case when salary = avg_salary then 1 end), --the same as average
+          count(case when salary < avg_salary then 1 end), --less than average
+          into v_high, v_same, v_low
+   from (
+         select salary, avg(salary) over (partition by 1) avg_salary
+         from employees
+        );
    
    dbms_output.put_line('Higher than avg : ' || v_high);
    dbms_output.put_line('Same as avg     : ' || v_same);