有2个日期变量,好想不能这样比较大小,应该怎么比较啊,
IF lastOfTheWeek < firstOfTheMonth THEN
firstOfTheMonth :=ADD_MONTHS(firstOfTheMonth,-1);
END IF;
if (firstOfTheWeek>= firstOfTheMonth) THEN
else
END IF;
IF lastOfTheWeek < firstOfTheMonth THEN
firstOfTheMonth :=ADD_MONTHS(firstOfTheMonth,-1);
END IF;
if (firstOfTheWeek>= firstOfTheMonth) THEN
else
END IF;
解决方案 »
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