Postgres SUM 在給定時間內

Question

我正在嘗試使用 Postgres 在給定時間內對谷歌分析數據求和。 我不太確定如何解決分組問題。 您在下面看到的查詢每天返回一列。 我想總結給定日期內的所有點擊次數。 因此，查詢應為每個廣告系列返回 1 行，每行有一列指示點擊次數。

SELECT
    sa.id AS salesforce_account_id,
    acp.campaignid,
    acp.campaignname,
    date,     
    SUM(clicks) as clicks
FROM
    adwords_campaign_performance acp
INNER JOIN salesforce_account sa ON
    sa.adwords_id = acp.adwords_customerid
WHERE acp.date >= '2020-10-01'
  AND acp.date <= '2020-10-03'
GROUP BY sa.id, acp.campaignid, acp.campaignname, date

我可以編寫查詢，使其返回整個月的數字，如下所示：

SELECT
    sa.id AS salesforce_account_id,
    acp.campaignid,
    acp.campaignname,
     date_trunc('month', date) AS MONTH,
        SUM(clicks) as clicks
FROM
    adwords_campaign_performance acp
INNER JOIN salesforce_account sa ON
    sa.adwords_id = acp.adwords_customerid
WHERE MONTH = '2020-10-01 00:00:00'
  AND sa.id = 3148
GROUP BY sa.id, acp.campaignid, acp.campaignname, MONTH

任何幫助將不勝感激。 謝謝！

Answer 1

您在下面看到的查詢每天返回一列。 我想總結給定日期內的所有點擊次數。 因此，查詢應為每個廣告系列返回 1 行，每行有一列指示點擊次數。

因此，只需從select和group by子句中刪除date ：

SELECT
    sa.id AS salesforce_account_id,
    acp.campaignid,
    acp.campaignname,     
    SUM(clicks) as clicks
FROM adwords_campaign_performance acp
INNER JOIN salesforce_account sa ON sa.adwords_id = acp.adwords_customerid
WHERE acp.date >= '2020-10-01'
  AND acp.date <= '2020-10-03'
GROUP BY sa.id, acp.campaignid, acp.campaignname

Answer 2

我認為您希望generate_series()生成一個月中的所有天數：

SELECT gs.date, sa.id AS salesforce_account_id, acp.campaignid, acp.campaignname,
       SUM(clicks) as clicks
FROM generate_series('2020-10-01'::date, '2020-10-31'::date, interval '1 day') gs(dte) LEFT JOIN
     adwords_campaign_performance acp
     ON acp.date >= gs.dte AND
        acp.date < gs.dte + INTERVAL '1 DAY' LEFT JOIN 
     salesforce_account sa
     ON sa.adwords_id = acp.adwords_customerid
GROUP BY gs.dte, sa.id, acp.campaignid, acp.campaignname, date