count records in ms access using query

问题

how to count record in ms access? here are my tables

[basicinfo](table1)
[Name     age     rawscore](fields)
mark      16      6
paul      17      5
bryan     16      8
jenny     16      7

verbal(table2)
[rawscore     scaledscore](fields)
1                1
2                1
3                2
4                2
5                3
6                3
7                4
8                4
9                5
10               5

writen(table3)
[rawscore     scaledscore]fields
1                1
2                1
3                2
4                2
5                3
6                3
7                4
8                4
9                5
10               5

basically i want to count how many examinee has a scaled score of 1,2,3,4,5 both for table 2 and 3

回答1:

Try the following query. It will list each scaled score and a count of students even if the count is 0. Change "FROM verbal" to "FROM written" for the written table.

SELECT v.scaledscore as [Scaled Score], count(i.rawscore) as [Count]
FROM verbal v LEFT JOIN basicinfo i ON v.rawscore = i.rawscore
GROUP BY v.scaledscore

来源：https://stackoverflow.com/questions/7733994/count-records-in-ms-access-using-query