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以下查詢按預期工作。 但是選擇數據的摘要表太大。查詢需要很長時間。臨時表而不是連接
SELECT s.date_time AS date_time,SUM(s.requests) AS sum_requests,SUM(s.impressions) AS sum_views,SUM(s.clicks) AS sum_clicks,SUM(s.conversions) AS sum_conversions,
SUM(s.total_revenue) AS sum_revenue,SUM(s.total_revenue) AS sum_spend,
SUM(s.total_basket_value) AS sum_bv,SUM(s.total_num_items) AS sum_num_items,SUM(s.total_pubrevenue) AS sum_pubrevenue
FROM ox_data_summary_ad_hourly AS s
INNER JOIN ox_banners AS d ON (d.bannerid=s.ad_id)
INNER JOIN ox_campaigns AS m ON (m.campaignid=d.campaignid)
INNER JOIN ox_clients AS a ON (a.clientid=m.clientid)
LEFT JOIN ox_zones AS z ON (z.zoneid=s.zone_id)
LEFT JOIN ox_affiliates AS p ON (p.affiliateid=z.affiliateid)
WHERE a.agencyid = 3 AND z.zone_type = 'application' AND z.delivery = 8
AND s.date_time>='2012-07-01 00:00:00' AND s.date_time<='2012-07-01 23:59:59'
GROUP BY date_time
我需要簡化連接。有沒有辦法爲所有連接創建一個臨時表,然後將該表連接到基表。 這是我到目前爲止嘗試過的。
drop table if exists test.helper;
create table test.helper
select d.network_type , d.is_network, d.bannerid, p.agencyid, z.zone_type, z.delivery , z.zoneid
FROM ox_banners as d
INNER JOIN ox_campaigns AS m ON (m.campaignid=d.campaignid)
INNER JOIN ox_clients AS a ON (a.clientid=m.clientid)
left JOIN ox_agency as oa ON (oa.account_id = a.clientid)
left JOIN ox_affiliates AS p ON (p.agencyid = oa.agencyid)
left JOIN ox_zones AS z ON (z.affiliateid = p.affiliateid);
alter table test.helper add key(bannerid, zoneid);
但是,當與原始表連接時,它不會返回正確的結果。
SELECT s.ad_id, s.date_time AS date_time,SUM(s.requests) AS sum_requests,SUM(s.impressions) AS sum_views,SUM(s.clicks) AS sum_clicks,SUM(s.conversions) AS sum_conversions,
SUM(s.total_revenue) AS sum_revenue,SUM(s.total_revenue) AS sum_spend,
SUM(s.total_basket_value) AS sum_bv,SUM(s.total_num_items) AS sum_num_items,SUM(s.total_pubrevenue) AS sum_pubrevenue
FROM ox_data_summary_ad_hourly AS s
inner JOIN test.helper AS d ON (d.bannerid=s.ad_id)
where d.agencyid = 3 AND d.zone_type = 'application' AND d.delivery = 8 and s.date_time>='2012-07-01 00:00:00' AND s.date_time<='2012-07-01 23:59:59'
GROUP BY date_time
我打算將數據從mysql中移出,並轉移到僅支持1個連接的其他數據庫。因此,這個問題。 – shantanuo
一個加入?哇。哪個「數據庫」是? – paulbailey