最大数（*）

Question

私のテーブル構造は、私は最高の月の特定の日

クエリ

select count(open_date) as c,day(open_date) as d 
from link_click 
where month(open_date)="01" and year(open_date)="2011" 
group by d 
having c =MAX(c); 

にrecoredクリックしても、それはだために照会する

| Field  | Type  | Null | Key | Default   | Extra | 
| uid  | char(255) | NO |  |     |  | 
| lid  | char(255) | NO | MUL |     |  | 
| ip_address | char(15) | NO |  |     |  | 
| user_agent | char(255) | YES |  | NULL    |  | 
| open_date | timestamp | NO | MUL | CURRENT_TIMESTAMP |  | 
| referrer | char(255) | YES |  | NULL    |  | 
| environ | text  | YES |  | NULL    |  | 
| country | char(255) | NO | MUL |     |  | 

です結果として空のセット。

Pls。提案する。

Answer 1

これはあなたの後のことですか？

select count(open_date) as c,day(open_date) as d 
from link_click 
where month(open_date)="01" and year(open_date)="2011" 
group by d 
order by c desc 
limit 1; 

Answer 2

これはうまくいくかもしれない：

select * from (
    select count(open_date) as c,day(open_date) as d 
    from link_click 
    where month(open_date)="01" and year(open_date)="2011" 
    group by d) 
having c =MAX(c);