如果值存在，则获取记录总和，将其视为 1，而不是精确值

Question

我需要“打开”为 2 并单击为 1 但现在我越来越喜欢打开为 5 并单击为 2

"SELECT 
COALESCE(sum(requested),0) as requested,
COALESCE(sum(processed),0) as processed,
COALESCE(sum(open),0) as open,
COALESCE(sum(click),0) as click,
COALESCE(sum(dropped),0) as dropped,
COALESCE(sum(delivered),0) as delivered,
COALESCE(sum(spamreport),0) as spamreport,
COALESCE(sum(deferred),0) as deferred,
COALESCE(sum(bounce),0) as bounce,
COALESCE(sum(unsubscribe),0) as unsubscribe
FROM CAMPAIGN_REPORTS WHERE _kftCampaingID='".$campaignId."'"

Answer 1

sum() 按预期工作。如果您希望将 0 以上的任何值视为 1，请编写如下 if 条件。话虽如此，coalesce 在这里看起来是多余的。

sum(if(open is not null and open > 0, 1, 0)),
sum(if(click is not null and click > 0, 1, 0))