SQL：使用concat（）分组

Question

我有一个查询，该查询返回特定日期的客户打来的电话的结果以及对客户等的一些建议，即按日期分组

但是现在我想找到我尝试按lead_id和cuncat(lead_id,timecreatredFormat)分组的客户数量，仍然存在数据不匹配的情况

以下是我尝试过的查询

    select 
    sum(t.enquiry_cnt),
    sum(t.suggested_cnt),
    sum(t.tot_cnt)

from
    (select 

        case
                when source = 1 then 1
                else 0
            end enquiry_cnt,

            case
                when source = 6 then 1
                else 0
            end suggested_cnt,
            case
                when (source = 1 || source = 6) then 1
                else 0
            end tot_cnt,
             date_format(timecreated, '%d-%b-%Y') created_time,
            lead_id,timecreated
    from
        mg_lead_suggested_listing  group by  concat(created_time,lead_id)   ) t
group by  t.created_time
order by t.timecreated desc
limit 10;

提前致谢

Answer 1

检查以下查询是否正确。 我添加了COUNT（DISTINCT t.lead_id）以获取客户计数。

DECLARE @TEMP TABLE
(
    [source] INT,
    lead_id INT,
    timecreated DATETIME
)

INSERT INTO @TEMP VALUES (1,1,GETDATE())
INSERT INTO @TEMP VALUES (6,1,GETDATE())
INSERT INTO @TEMP VALUES (6,1,GETDATE())
INSERT INTO @TEMP VALUES (1,2,DATEADD(d,-1,GETDATE()))
INSERT INTO @TEMP VALUES (1,1,DATEADD(d,-1,GETDATE()))
INSERT INTO @TEMP VALUES (1,1,DATEADD(d,-1,GETDATE()))


SELECT
    CAST(t.timecreated AS DATE) [date],
     SUM(t.enquiry_cnt) enquiry_cnt,
    (SELECT COUNT(DISTINCT lead_id) FROM @TEMP WHERE CAST(timecreated AS DATE) = CAST(t.timecreated AS DATE) AND [source] = 1) as lead_enquiry_cnt,
    SUM(t.suggested_cnt) suggested_cnt,
    (SELECT COUNT(DISTINCT lead_id) FROM @TEMP WHERE CAST(timecreated AS DATE) = CAST(t.timecreated AS DATE) AND [source] = 6) as lead_suggested_cnt,
    SUM(t.tot_cnt) tot_cnt,
    COUNT(t.lead_id) as lead_cnt
FROM
(
    SELECT 
        CASE 
            WHEN [source] = 1 THEN 1
            ELSE 0
        END enquiry_cnt,
        CASE
            WHEN [source] = 6 THEN 1
            ELSE 0
        END suggested_cnt,
        CASE
            WHEN ([source] = 1 OR [source] = 6) THEN 1
            ELSE 0
        END tot_cnt,
        lead_id,
        timecreated
    FROM
        @TEMP
    ) AS t
group by  
    CAST(t.timecreated AS DATE)
order by 
    [date] desc