Question

我有一个sql，可在员工合同到期60天前将记录插入通知表中。

         INSERT INTO notification (name)
    SELECT employee.employee_name
    from EMPLOYEE, employee_info 
    where EMPLOYEE_INFO.EMPLOYEE_NAME(+) =EMPLOYEE.EMPLOYEE_NAME             

AND (LEAVE_TYPE ='Vacation'
             or LEAVE_TYPE = 'Personal')
     group by  EMPLOYEE.EMPLOYEE_NAME, EMPLOYEE.CONTRACT_END_PERIOD, EMPLOYEE.TOTAL_VACATION_LEAVE, EMPLOYEE_INFO.LEAVE_TYPE
      HAVING sum(days_taken) > 0
     and TO_DATE(contract_end_period,'DD-MM-YYYY') < TO_DATE (SYSDATE,'DD-MM-YYYY') + 60
);

但是，当新员工合同到期时，我只希望将新记录插入到通知表中。

我现在得到的是插入新旧条目（因为我使用的是页面加载sql），这导致表中出现重复项。

Answer 1

INSERT INTO notification (name)
    SELECT employee.employee_name
    from EMPLOYEE, employee_info 
    where EMPLOYEE_INFO.EMPLOYEE_NAME(+) =EMPLOYEE.EMPLOYEE_NAME             
    AND (LEAVE_TYPE ='Vacation' or LEAVE_TYPE = 'Personal')
 -> AND employee.employee_name NOT IN (select notification.name from notification) <-
     group by  EMPLOYEE.EMPLOYEE_NAME, EMPLOYEE.CONTRACT_END_PERIOD, EMPLOYEE.TOTAL_VACATION_LEAVE, EMPLOYEE_INFO.LEAVE_TYPE
      HAVING sum(days_taken) > 0
     and TO_DATE(contract_end_period,'DD-MM-YYYY') < TO_DATE (SYSDATE,'DD-MM-YYYY') + 60
);

您需要将查询限制为该表中尚不存在的人。上面给出了一个示例：“-> AND employee.employee_name NOT IN（从通知中选择notification.name）<-” 标记。

触发输入新记录

1 个答案: