假设我有一个包含以下值的表格.
Let's say I have a table with the following values.
Ford
Ford
Ford
Honda
Chevy
Honda
Honda
Chevy
所以我想构造以下输出.
So I want to construct the following output.
Ford 3
Honda 3
Chevy 2
它只需要列中每个元素的计数.
It just takes the count of each element in the column.
我在列出唯一列时遇到问题.
I'm having an issue listing the unique columns.
谁能告诉我怎么做?
我已经把 UNIQUE
和 DISTINCT
弄乱了,但我不能获取左侧的值列表.
I've messed around with UNIQUE
and DISTINCT
, but I'm not able to
get the list of values on the left.
你是这个意思吗?
select car_make, count(*) from cars
group by car_makes
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