Oracle sample SQL

gistfile1.txt

```sql
CREATE VIEW vsal 
AS 
  SELECT a.deptno                  "Department", 
         a.num_emp / b.total_count "Employees", 
         a.sal_sum / b.total_sal   "Salary" 
  FROM   (SELECT deptno, 
                 Count()  num_emp, 
                 SUM(sal) sal_sum 
          FROM   scott.emp 
          WHERE  city = 'NYC' 
          GROUP  BY deptno) a, 
         (SELECT Count()  total_count, 
                 SUM(sal) total_sal 
          FROM   scott.emp 
          WHERE  city = 'NYC') b 
```