So I've got 3 different columns (basket 1, 2, and 3). Sometimes these columns have all the information and sometimes one or two of them are null. I have another column that I'm going to average these values into and save.So I've got 3 different columns (basket 1, 2, a
阅读背景：
MS-SQL平均列为NULL。
来源：互联网
分享到：
