Question

尝试比较当前年度佣金与上一年度的总和，但无法创建内部联接。如果thisYear更高，我会将growth_incentive字段更新为'。05'目前有类似的东西可以获取数据，但我感觉效率低下

SELECT   a.emp_no, SUM(a.total_commission) AS ThisYearComm
    ,(select SUM(total_commission) AS LastYearComm
      from  tbl_comm_medmon_employees_stats
      where emp_no = a.emp_no
        and year(getdate())-1 = comm_year) as lastyear
FROM    tbl_comm_medmon_employees_stats a
where   year(getdate()) = a.comm_year
GROUP BY a.emp_no, a.comm_year

Answer 1

如果我理解你的桌子，你就不需要加入了。尝试使用条件聚合，如下所示：

SELECT   a.emp_no
    , SUM(case when year(getdate()) = a.comm_year then a.total_commission end) AS ThisYearComm
    , SUM(case when year(getdate()) - 1 = a.comm_year then a.total_commission end) AS LastYearComm
FROM    tbl_comm_medmon_employees_stats a
where  a.comm_year in (year(getdate()),  year(getdate()) - 1)
GROUP BY a.emp_no

Answer 2

您可以尝试使用条件SUM代替

SELECT  a.emp_no, 
        SUM(CASE WHEN year(getdate())-1 = a.comm_year THEN a.total_commission 
                  ELSE 0
             END) [LastYear],
        SUM(CASE WHEN year(getdate())   = a.comm_year THEN a.total_commission 
                  ELSE 0 
             END) [ThisYearComm]
FROM    tbl_comm_medmon_employees_stats a
GROUP BY a.emp_no

当年佣金的SQL总和高于上一年

2 个答案: