MySQL之間的子查詢日期問題

Question

好吧，我有一個子查詢，我正在嘗試使用，並需要一個複雜的問題回答。有一個SQL工具用於生成報告。使用此工具，只要日期位於外部選擇語句中，就可以選擇日期。所以，你可以使用此工具從這樣一個簡單的SELECT語句例如選擇日期範圍：

select date_entered, name from opportunities 

這將很好地工作的工具。

但是，我有一個SQL需求，我需要讓每列都是它自己的SQL語句（基本上是一系列的子查詢）。我的問題是 - 無論如何有一個子查詢使用最初的選擇日期？這是我不得不做的select語句的示例：

SELECT 
(
    SELECT 
     count(
      opportunities.id) AS "count_for_opp_id" 

    FROM 
     opportunities 
LEFT JOIN opportunities_cstm ON opportunities.id = opportunities_cstm.id_c 
WHERE 
    opportunities.deleted = '0' 
AND ((curdate() - interval 0 day) <= opportunities.date_entered) 
AND opportunities_cstm.lead_category_c = 'GM Internet' 
AND opportunities_cstm.lead_type_c = 'Sales' 
AND opportunities_cstm.partner_id_c LIKE '41%' 
OR opportunities_cstm.partner_id_c LIKE '42%' 
OR opportunities_cstm.partner_id_c LIKE '43%' 
OR opportunities_cstm.partner_id_c LIKE '44%' 
OR opportunities_cstm.partner_id_c LIKE '45%' 
OR opportunities_cstm.partner_id_c LIKE '47%' 
OR opportunities_cstm.partner_id_c LIKE '48%' 
OR opportunities_cstm.partner_id_c LIKE '49%' 
OR opportunities_cstm.lead_sub_type_c = 'GM 3rd Party' 
)AS TOT_DIV_THIRD_PARTY_SALES_LEADS, 
(
SELECT 
count(opportunities.id) AS "count_for_opp_id" 
FROM 
opportunities left 
    JOIN opportunities_cstm ON opportunities.id = opportunities_cstm.id_c 
WHERE 
    opportunities.deleted = '0' 
AND ((curdate() - interval 0 day) <= opportunities.date_entered) 
AND opportunities_cstm.lead_category_c = 'Dealer Web' 
AND opportunities_cstm.lead_type_c = 'Sales' 
AND opportunities_cstm.lead_sub_type_c = 'GM Dealer Website' 
OR opportunities_cstm.lead_sub_type_c = 'DMA Landing Page' 
)AS TOT_DEALER_WEBSITE_DMA_SALES_LEADS, 
(
    SELECT 
     count(opportunities.id) AS "count_for_opp_id" 
    FROM 
     opportunities left 
    JOIN opportunities_cstm ON opportunities.id = opportunities_cstm.id_c 
JOIN leads_handling_objectives 
WHERE 
opportunities.deleted = '0' 
AND ((curdate() - interval 0 day) <= opportunities.date_entered) 
AND opportunities_cstm.lead_category_c = 'GM Internet' 
AND opportunities_cstm.partner_id_c LIKE '41%' 
OR opportunities_cstm.partner_id_c LIKE '42%' 
OR opportunities_cstm.partner_id_c LIKE '43%' 
OR opportunities_cstm.partner_id_c LIKE '44%' 
OR opportunities_cstm.partner_id_c LIKE '45%' 
OR opportunities_cstm.partner_id_c LIKE '47%' 
OR opportunities_cstm.partner_id_c LIKE '48%' 
OR opportunities_cstm.partner_id_c LIKE '49%' 
OR opportunities_cstm.lead_sub_type_c = 'GM 3rd Party' 
AND opportunities_cstm.time_followup_c <= leads_handling_objectives.resp_time_obj 
AND opportunities_cstm.make_c = leads_handling_objectives.makes_carried 
AND opportunities_cstm.time_followup_c IS NOT NULL 
)AS NUM_OF_LEADS_RESP_ONTIME_DIVISIONAL_THIRD_PARTY, 
(
    SELECT 
     count(opportunities.id) AS "count_for_opp_id" 
    FROM 
     opportunities left 
    JOIN opportunities_cstm ON opportunities.id = opportunities_cstm.id_c 
JOIN leads_handling_objectives 
WHERE 
opportunities.deleted = '0' 
AND ((curdate() - interval 0 day) <= opportunities.date_entered) 
AND opportunities_cstm.lead_category_c = 'Dealer Web' 
AND opportunities_cstm.lead_sub_type_c = 'GM Dealer Website' 
OR opportunities_cstm.lead_sub_type_c = 'DMA Landing Page' 
AND opportunities_cstm.time_followup_c <= leads_handling_objectives.resp_time_obj 
AND opportunities_cstm.make_c = leads_handling_objectives.makes_carried 
AND opportunities_cstm.time_followup_c IS NOT NULL 
)AS NUM_OF_LEADS_RESP_ONTIME_DEALERWEBSITE_DMA 

如果你看一下這個查詢，你會發現CURDATE ... < =子查詢的date_entered一部分。我需要在select語句的某個方面在外層真的有這個。但是，如果我把它放在外層，我不知道如何使子查詢使用日期範圍。

我知道這是一個複雜的問題，但是 - 有沒有人有任何建議？謝謝！

（注意：還有，這不可能是一個過程或函數它必須是一個SELECT語句或與報表工具工作視圖）

還有一個編輯 - 一個更簡單的（小）片段以上的SQL可以集中在這裏：

SELECT 
(SELECT 
     count(
      opportunities.id) AS "count_for_opp_id" 

    FROM 
     opportunities 
LEFT JOIN opportunities_cstm ON opportunities.id = opportunities_cstm.id_c 
WHERE 
    opportunities.deleted = '0' 
AND ((curdate() - interval 0 day) <= opportunities.date_entered) 
AND opportunities_cstm.lead_category_c = 'GM Internet' 
AND opportunities_cstm.lead_type_c = 'Sales' 
) AS TOT_DIV_THIRD_PARTY_SALES_LEADS 

上面這一個可能更容易閱讀，並且從長遠來看更容易診斷。

謝謝！

Answer 1

您的（小）查詢，因爲它缺少一個FROM。把一個在會給你一個鉤掛從CURDATE（）函數...

SELECT (SELECT count(opportunities.id) AS "count_for_opp_id" 
      FROM opportunities LEFT JOIN opportunities_cstm ON opportunities.id = opportunities_cstm.id_c 
      WHERE opportunities.deleted    = '0' AND 
        ((curdate() - interval 0 day)  <= opportunities.date_entered) AND 
        opportunities_cstm.lead_category_c = 'GM Internet' AND 
        opportunities_cstm.lead_type_c  = 'Sales') AS TOT_DIV_THIRD_PARTY_SALES_LEADS 
    FROM any_table 
    LIMIT 1; 

第二個建議...

SELECT <given date>, 
     (SELECT count(opportunities.id) AS "count_for_opp_id" 
      FROM opportunities LEFT JOIN opportunities_cstm ON opportunities.id = opportunities_cstm.id_c 
      WHERE opportunities.deleted    = '0' AND 
        (<given date>      <= opportunities.date_entered AND 
        opportunities_cstm.lead_category_c = 'GM Internet' AND 
        opportunities_cstm.lead_type_c  = 'Sales') AS TOT_DIV_THIRD_PARTY_SALES_LEADS 
    FROM any_table 
    LIMIT 1; 

給定的日期可以是文字或變量，或者可以出現在any_table中;它會很好地進入子查詢。