SQL表的摘要信息？

Question

我正在使用一个存储员工班次信息的表格：

我的目标是创建一个显示信息摘要的新视图或查询：

我想我在这里需要某种类型的OLAP查询，也许是汇总的一组......

我可以像这样使用组来获取一些信息，但仍然需要一种方法将它与原始表结合使用，因此它仍然显示其他信息，如名称。使用SQL Server。

SELECT employee,[week], sum(regular), sum(overtime), 
       sum(regular_pay), sum(overtime_pay), sum(regular) + sum(overtime),
       sum(regular_pay) + sum(overtime_pay) FROM shift_details GROUP BY employee, [week] 

Answer 1

过去，在SQL中为报表创建格式化表时，我使用了基于新列的排序方法。

E.G。

SELECT employee, week, regular, overtime, reg_pay, ot_pay, regular + overtime AS total_hours, reg_pay + ot_pay AS total_pay, 1 AS sort_by FROM shift_details
UNION ALL
SELECT employee,[week], sum(regular), sum(overtime), 
       sum(regular_pay), sum(overtime_pay), sum(regular) + sum(overtime),
       sum(regular_pay) + sum(overtime_pay), 2 AS sort_by FROM shift_details GROUP BY employee, [week]
ORDER BY employee, week, sort_by

...等......

如果你想省略＆＃34; sort_by＆＃34;，只需像这样包装查询......

SELECT
  employee, week, regular, overtime, reg_pay, ot_pay, total_hours, total_pay
FROM
  (
    ... query above without the "ORDER" statement.
  ) AS inner_query
ORDER BY employee, week, sort_by