在SQL中計票並按順序降序

Question

我在SQL中包含此餐桌投票。

表：

現在，我想要做的是數都一樣MealId與對方，並責令其按降序排列。

例如（ID | MealId |用戶ID | VoteDate）：

1 | 13 | 1 | somedate 

2 | 1 | 2 | somedate 

3 | 3 | 1 | somedate 

4 | 13 | 3 | somedate 

現在，經過計算就應該是這樣的：

2 //Here are the MealId's that are equal to 13 
1 //Here are the MealId's that are equal to 1 or 3, because there is only 1 vote for that Meal 
1 //Here are the MealId's that are equal to 1 or 3, because there is only 1 vote for that Meal 

注意：它不會有顯示該投票計數：「2,1,1」，我只想按降序排列投票。包含大部分選票的膳食應該是最重要的。

Answer 1

使用窗口骨料（COUNT）得到計數數據到行旁邊的其他數據，然後只是簡單ORDER BY：

;With TotalVotes as (
    select *,COUNT(*) OVER (PARTITION BY MealId) as Cnt 
    from UnnamedTable 
) 
select * from TotalVotes ORDER BY Cnt desc,MealId