题解 | #获取有奖金的员工相关信息。#
获取有奖金的员工相关信息。
http://www.nowcoder.com/practice/5cdbf1dcbe8d4c689020b6b2743820bf
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本题解析
本题考查case....when...then...end语法的应用 和多表联合查询 -
参考答案
select e.emp_no,
e.first_name,
e.last_name,
eb.btype,
s.salary,
(case
when eb.btype=1 then s.salary*0.1
when eb.btype=2 then s.salary*0.2
else s.salary*0.3
end
) as bonus
from employees e,emp_bonus eb,salaries s
where s.to_date='9999-01-01'
and e.emp_no = eb.emp_no
and e.emp_no = s.emp_no
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