1
我有以下數據根據一些特定條件添加編號,以一個字段
CompId PersonelNo EduId RecordsDay DateEs
1 1000 1 2 1370
1 1000 2 10 1370
1 1002 2 5 1380
1 1003 1 4 1391
1 1003 2 7 1391
我要添加(1392年至1390年= 2)的最大EduID和記錄的RecordsDay其中DateEs小於或等於1390,並添加(DateEs -1390)爲RecordsDay最大EduID和記錄與DateEs比1390
更大,所以數據會是這樣
CompId PersonelNo EduId RecordsDay DateEs
1 1000 1 2 1370 // record is the same becuase eduID is not Max for this Personel
1 1000 2 12 1370 // this is max EduId for this personel and DateEs is less than 1390 so (1392-1390) +10 = 12
1 1002 2 7 1380 //this is the only record for this personel and DateEs is less than 1390(1392-1390) +5 = 7
1 1003 1 4 1391 // record is the same becuase eduID is not Max for this Personel
1 1003 2 8 1391 // this is max EduId for this personel and DateEs is Greater than 1390 so (1391-1390) +7 = 8
我想有TSQL它。我的工作就可以了,但可以把它寫到現在