7일차 # 4-6: AVG, SUM

Bohemian life 2012. 4. 12. 22:24

2012. 4. 12. 22:24

select sum(sal)/count(*), avg(sal)

from emp;

8일차 # 4-10: Group Function with NULL (0)	2012.04.13
8일차 # 4-9: DISTINCT (0)	2012.04.13
7일차 # 4-8: COUNT (0)	2012.04.12
7일차 # 4-5, 4-10: (0)	2012.04.12
7일차 # 4-4: AVG, COUNT, MAX, MIN, STDDEV, SUM, VARIANCE ... (0)	2012.04.12

Bohemian life