Teradata - 時間戳差異 - 間隔提交溢出錯誤

Question

我想減去兩個TIMESTAMP文件，並希望得到分鐘的差異。

SELECT EXTRACT(MINUTE FROM (CAST(END_DT AS TIMESTAMP(0)) - CAST(START_DT AS TIMESTAMP(0)) MINUTE(4) TO SECOND)) + EXTRACT(SECOND FROM (CAST(END_DT AS TIMESTAMP(0)) - CAST(START_DT AS TIMESTAMP(0)) MINUTE(4) TO SECOND)) * 1.00/60 
from tableA 

但我得到間隔提交溢出錯誤。

Answer 1

我可以用下面

(EXTRACT(HOUR FROM TIME_DIFF) * 60) + EXTRACT(MINUTE FROM TIME_DIFF) + (EXTRACT(SECOND FROM TIME_DIFF) * 1.00/60) 

實現解決方案，TIME_DIFF是(ACTL_END_DT - ACTL_START_DT) DAY(4) TO SECOND