ORA

haifengdl: 厉害

ZKY_24: 赞

qq_35475661: SELECT EMPLOYEENO ,YEARMONTH ,SALARY ,MIN(SALARY) KEEP(DENSE_RANK FIRST ORDER BY YEARMONTH) OVER(PARTITION BY EMPLOYEENO) FIRST_SALARY -- 基比分析 salary/first_salary ,LAG(SALARY, 1, 0) OVER(PARTITION BY EMPLOYEENO ORDER BY YEARMONTH) AS PREV_SAL -- 环比分析，与上个月份进行比较 ,LAG(SALARY, 12, 0) OVER(PARTITION BY EMPLOYEENO ORDER BY YEARMONTH) AS PREV_12_SAL -- 同比分析，与上个年度相同月份进行比较 ,SUM(SALARY) OVER(PARTITION BY EMPLOYEENO, SUBSTR(YEARMONTH, 1, 4) ORDER BY YEARMONTH RANGE UNBOUNDED PRECEDING) LJ --累计值 FROM SALARYBYMONTH ORDER BY EMPLOYEENO ,YEARMONTH

houzhanshanlinzhou: 写的非常好，简单清晰

金罗老师: 谢谢分享这么详细的路线，我刚刚学习不久也希望和我一样还在奋斗在路上的朋友一起学习，我有建立一个大数据学习裙：868-847-735可以一起学习交流