經安全檢測,此網站為安全網站,請放心前往原始網址!

How to count distinct records in MS Access

2 records returned. Count distinct records that contain NULL values The query below is the inner query we just saw which shows a list of distinct values in the ReportsTo column. Note that when we run this query alone, NULL is displayed in the result set,

www.geeksengine.com

網址安全性掃描由 google 提供