Question

如何在下面的“案例陈述”中添加“年限”？我只需要修复“INTERVAL 6 YEAR”＆amp; “间隔5年”标准。

以下是我需要建模的标准：

如果1〜5年，那么11

如果6〜10年，那么14

如果11年以上，那么18岁

CASE WHEN hiredate < DATE_SUB(NOW(),INTERVAL 11 YEAR)
 THEN '18'
 WHEN hiredate < DATE_SUB(NOW(),INTERVAL 6 YEAR)
 THEN '14'
 WHEN hiredate < DATE_SUB(NOW(),INTERVAL 5 YEAR)
 THEN '11'
 ELSE '0'    END AS Non_Management_Accrual

Answer 1

您可以使用DATEDIFF方法计算两天之间的天数，并将其除以365以获得years。基于这些，您可以编写case语句，例如：

SELECT id, CASE WHEN FLOOR(DATEDIFF(NOW(), hiredate) / 365) < 1
 THEN '0'
 WHEN FLOOR(DATEDIFF(NOW(), hiredate) / 365) < 6
 THEN '11'
 WHEN FLOOR(DATEDIFF(NOW(), hiredate) / 365) < 11
 THEN '14'
 ELSE '18'    
 END AS Non_Management_Accrual
 FROM emp;

这是SQL Fiddle。

Answer 2

Darshan，我最终在MySQL端创建了Views，然后将视图添加到上面代码的FROM语句中。这给了我正确的输出。感谢。

<!--- Create the Manager Monthly Accruals (Mgt) dataset --->
  <cfquery name="rsLeaveTimeManagerAccruals" datasource="care">
SELECT    username, status, active, email, hiredate, tblUsers.picture AS eP
, TIMESTAMPDIFF(YEAR, hiredate, NOW()) AS year_passed
, TIMESTAMPDIFF(MONTH, hiredate, NOW()) MOD 12 AS month_passed
, TIMESTAMPDIFF(DAY, hiredate, NOW()) MOD 365 AS day_passed
, CONCAT(TIMESTAMPDIFF(YEAR, hiredate, NOW())," years, ",TIMESTAMPDIFF(MONTH, hiredate, NOW()) MOD 12," months, ",TIMESTAMPDIFF(DAY, hiredate, NOW()) MOD 365," days") AS EmployLengthActive
, TIMESTAMPDIFF(YEAR, hiredate, NOW()) AS monthly_accrual_time

, CASE WHEN FLOOR(DATEDIFF(NOW(), hiredate) / 365) < 1
 THEN '0'
 WHEN FLOOR(DATEDIFF(NOW(), hiredate) / 365) <= 5
 THEN '14'
 WHEN FLOOR(DATEDIFF(NOW(), hiredate) / 365) >= 6
 THEN '18'
 END AS Management_Accrual


FROM      v_reports_to_mgt_list LEFT OUTER JOIN tblusers ON tblusers.ID = v_reports_to_mgt_list.id
WHERE     clr_accrual = '1' AND hiredate  IS NOT NULL
ORDER BY  hiredate
</cfquery>

如何在“案例陈述”中添加“年限”

2 个答案: