sql - MySQL count identical values -
i have table named prizes following structure
`id` (primary) `id_multiple` `desc` `winner`
i want select don't have winner
(null
) , display them if have same id_multiple
showing count of how many left win of id_multiple
.
so example, there's values:
id_multiple | winner | desc 1 | null | voucher 1 | jonh | voucher 2 | null | car 2 | null | car
and want display:
left win: 1 voucher 2 car
(the desc
same id_multiple
might ambiguous use id_multiple
?)
something like:
select id_multiple,count(id_multiple),`desc` `yourtable` `winner` null group `id_multiple`
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