如何将多个记录作为单个记录获取

Question

上述结果集有在第一排的三个值timeone和timetwo有值,而timethree,timefour,timefive和timesixNULL值,它遵循其他四列.

我怎样才能在一行中获取所有这些内容？

Answer 1

只需执行聚合:

SELECT ID,NAME,Age, 
       MAX(timeone) AS timeone,
       MAX(timetwo) AS timetwo,
       MAX(timethree) AS timethree,
       MAX(timefour) AS timefour,
       MAX(timefive) AS timefive,
       MAX(timesix) AS timesix
FROM [table]
GROUP  BY ID,NAME,Age;