查询以查找唯一行及其计数

Question

Say I have a table with rows like,

A
B
A
C
D
D
A

I want a table from that with unique row and count. So resultant table will be of two column like,

A 3
B 1
C 1
D 2

Having difficulty writing the query. Help?

Answer 1

SELECT column1, count(column1)
FROM [table]
GROUP BY column1