相关疑难解决方法(0)

SELECT logcount, logUserID, maxlogtm
   , DATEDIFF(day, maxlogtm, GETDATE()) AS daysdiff
FROM statslogsummary
WHERE daysdiff > 120

我明白了

"无效的列名称daysdiff".

Maxlogtm是一个日期时间字段.这是让我疯狂的小东西.