Question

我在查询时遇到问题，也许有人可以帮助我：）

我有3张桌子：

1）文件

DocRef  CustRef
Doc1    Cust1
Doc2    Cust2
Doc3    Cust1

2）LinkInter

DocRef  InterRef
Doc1    Inter1
Doc2    Inter2
Doc3    Inter3

3）Inter

id  InterRef    deliverychannel email   mobilenb    date    status
1   Inter1      Email           email1@email.be     2013-01-14T00:00:00Z    ok
2   Inter1      SMS                     0444111111  2013-01-12T00:00:00Z    ko
3   Inter1      Other           email5@email.be     2013-02-21T00:00:00Z    ko
4   Inter2      Email   email2@email.be 044456465465    2013-01-21T00:00:00Z    ko
5   Inter3      Email                               2013-01-21T00:00:00Z    ko
6   Inter3      SMS                                 2013-01-22T00:00:00Z    ko
7   Inter3      Other   email3@mail.be              2013-01-22T00:00:00Z    ko

要获得最佳视图，请点击此处：sqlfiddle

我想要的结果如下：

CustRef | number of InterRef SMS KO| Last email known| Last mobilenb known
Cust1   | 2                        | email5@email.be | 0444111111

我希望所有的客户的交付渠道=“ SMS”，状态为“ ko”，状态为“ KO”的Inter（交互）数，最近的电子邮件已知，最后的移动电话号码。

我尝试使用2个函数getLastEmailKnown和getLastmobilenbKnown，但是我的表计数的记录超过10.000.000，这需要很多时间

我可以在php页面上获得此结果，但这不是解决方案，我只希望有一个查询

如果我分别执行3个查询，它可以工作，但我只想要一个

SELECT d.CustRef, count(DISTINCT i.InterRef) , i.email, i.mobilenb
FROM Documents d
    INNER join LinkInter link on link.DocRef = d.DocRef
    INNER join Inter i on i.InterRef = link.InterRef 
          and i.deliverychannel = 'SMS' 
          and i.status = 'ko'
group by d.CustRef 
Order by d.CustRef DESC;

SELECT distinct i.email as lastEmailKnown, d.CustRef
FROM Inter i
    INNER join LinkInter link on link.InterRef = i.InterRef
    INNER join Documents d on d.DocRef = link.DocRef
where d.CustRef = 'Cust1' AND email is not NULL and email <> '' ORDER by date DESC LIMIT 1;

SELECT distinct i.mobilenb as lastmobileKnown, d.CustRef
FROM Inter i
    INNER join LinkInter link on link.InterRef = i.InterRef
    INNER join Documents d on d.DocRef = link.DocRef
where d.CustRef = 'Cust1' AND mobilenb is not NULL and mobilenb <> '' ORDER by date DESC LIMIT 1;

Mariadb SQL使用分组依据选择计数，然后从另一个中选择不为空的值

0 个答案: