Question

Employee_id    Status 
-----------------------
111            Approved
111            Approved
111            Pending
222            Approved
222            Approved

在我的表中，如上所述，只有222应该获得批准的解决方案。

我尝试过的事情：

select distinct employee_id, status
from main_table

Answer 1

如果我理解正确，您正在寻找除“已批准”之外没有任何状态的员工。这可以表示为sed -i "s/ERROR/NOTE/g" $log_file;条件：

not exists

Answer 2

试试这个：

SELECT DISTINCT employee_id
FROM main_table
WHERE employee_id NOT IN (SELECT s.employee_id FROM main_table as s
                          WHERE Status != 'Approved')

Answer 3

SELECT employee_id
  FROM main_table a
 GROUP BY employee_id
HAVING sum( case status when 'Approved' then 0 else 1 end ) = 0

以下条件的SQL查询

3 个答案: