如何使該統計查詢動態化？

Question

我有此用戶表：

id(int) | created (datetime)

我正在服務器上顯示統計信息，該服務器執行以下操作：-選擇日期-選擇是否要顯示每日，每周或每月的統計信息（請參閱查詢）

我只是通過如下方式使查詢非常靜態：

WEEK(DATE_ADD(" + date + ", INTERVAL -2 WEEK) // Shows how many users that has been created from two weeks before current date to current date

現在，我希望應該查看統計信息的管理員能夠選擇他想顯示統計信息的時間。 所以我需要使查詢動態。

這是我所做的原始靜態查詢：

String sQuery = "SELECT " +
                "       (SELECT count(statistic_customer_created.id) FROM statistic_customer_created) as totalNumberOfCreatedUsers, " +
                "       (SELECT count(statistic_customer_created.id) FROM statistic_customer_created WHERE DAYOFYEAR(" + date + ") = DAYOFYEAR(statistic_customer_created.created) AND YEAR(" + date + ") = YEAR(statistic_customer_created.created)) as thisDaysNumberOfCreatedUsers, " +
                "       (SELECT count(statistic_customer_created.id) FROM statistic_customer_created WHERE DAYOFYEAR(DATE_ADD(" + date + ", INTERVAL -1 DAY)) = DAYOFYEAR(statistic_customer_created.created) AND YEAR(" + date + ") = YEAR(statistic_customer_created.created)) as thisDaysMinusOneNumberOfCreatedUsers," +
                "       (SELECT count(statistic_customer_created.id) FROM statistic_customer_created WHERE DAYOFYEAR(DATE_ADD(" + date + ", INTERVAL -2 DAY)) = DAYOFYEAR(statistic_customer_created.created) AND YEAR(" + date + ") = YEAR(statistic_customer_created.created)) as thisDaysMinusTwoNumberOfCreatedUsers," +
                "       (SELECT count(statistic_customer_created.id) FROM statistic_customer_created WHERE DAYOFYEAR(DATE_ADD(" + date + ", INTERVAL -3 DAY)) = DAYOFYEAR(statistic_customer_created.created) AND YEAR(" + date + ") = YEAR(statistic_customer_created.created)) as thisDaysMinusThreeNumberOfCreatedUsers," +
                "       (SELECT count(statistic_customer_created.id) FROM statistic_customer_created WHERE DAYOFYEAR(DATE_ADD(" + date + ", INTERVAL -4 DAY)) = DAYOFYEAR(statistic_customer_created.created) AND YEAR(" + date + ") = YEAR(statistic_customer_created.created)) as thisDaysMinusFourNumberOfCreatedUsers," +
                "       (SELECT count(statistic_customer_created.id) FROM statistic_customer_created WHERE DAYOFYEAR(DATE_ADD(" + date + ", INTERVAL -5 DAY)) = DAYOFYEAR(statistic_customer_created.created) AND YEAR(" + date + ") = YEAR(statistic_customer_created.created)) as thisDaysMinusFiveNumberOfCreatedUsers," +
                "       (SELECT count(statistic_customer_created.id) FROM statistic_customer_created WHERE DAYOFYEAR(DATE_ADD(" + date + ", INTERVAL -6 DAY)) = DAYOFYEAR(statistic_customer_created.created) AND YEAR(" + date + ") = YEAR(statistic_customer_created.created)) as thisDaysMinusSixNumberOfCreatedUsers," +
                "       (SELECT count(statistic_customer_created.id) FROM statistic_customer_created WHERE DAYOFYEAR(DATE_ADD(" + date + ", INTERVAL -7 DAY)) = DAYOFYEAR(statistic_customer_created.created) AND YEAR(" + date + ") = YEAR(statistic_customer_created.created)) as thisDaysMinusSevenNumberOfCreatedUsers," +
                "       (SELECT count(statistic_customer_created.id) FROM statistic_customer_created WHERE WEEK(" + date + ") = WEEK(statistic_customer_created.created) AND YEAR(" + date + ") = YEAR(statistic_customer_created.created))  as thisWeeksNumberOfCreatedUsers," +
                "       (SELECT count(statistic_customer_created.id) FROM statistic_customer_created WHERE WEEK(DATE_ADD(" + date + ", INTERVAL -1 WEEK)) = WEEK(statistic_customer_created.created) AND YEAR(" + date + ") = YEAR(statistic_customer_created.created))  as thisWeeksMinusOneNumberOfCreatedUsers," +
                "       (SELECT count(statistic_customer_created.id) FROM statistic_customer_created WHERE WEEK(DATE_ADD(" + date + ", INTERVAL -2 WEEK)) = WEEK(statistic_customer_created.created) AND YEAR(" + date + ") = YEAR(statistic_customer_created.created))  as thisWeeksMinusTwoNumberOfCreatedUsers," +
                "       (SELECT count(statistic_customer_created.id) FROM statistic_customer_created WHERE WEEK(DATE_ADD(" + date + ", INTERVAL -3 WEEK)) = WEEK(statistic_customer_created.created) AND YEAR(" + date + ") = YEAR(statistic_customer_created.created))  as thisWeeksMinusThreeNumberOfCreatedUsers," +
                "       (SELECT count(statistic_customer_created.id) FROM statistic_customer_created WHERE WEEK(DATE_ADD(" + date + ", INTERVAL -4 WEEK)) = WEEK(statistic_customer_created.created) AND YEAR(" + date + ") = YEAR(statistic_customer_created.created))  as thisWeeksMinusFourNumberOfCreatedUsers," +
                "       (SELECT count(statistic_customer_created.id) FROM statistic_customer_created WHERE MONTH(" + date + ") = MONTH(statistic_customer_created.created) AND YEAR(" + date + ") = YEAR(statistic_customer_created.created))  as thisMonthsNumberOfCreatedUsers," +
                "       (SELECT count(statistic_customer_created.id) FROM statistic_customer_created WHERE MONTH(DATE_ADD(" + date + ", INTERVAL -1 MONTH)) = MONTH(statistic_customer_created.created) AND YEAR(" + date + ") = YEAR(statistic_customer_created.created))  as thisMonthsMinusOneNumberOfCreatedUsers," +
                "       (SELECT count(statistic_customer_created.id) FROM statistic_customer_created WHERE MONTH(DATE_ADD(" + date + ", INTERVAL -2 MONTH)) = MONTH(statistic_customer_created.created) AND YEAR(" + date + ") = YEAR(statistic_customer_created.created))  as thisMonthsMinusTwoNumberOfCreatedUsers," +
                "       (SELECT count(statistic_customer_created.id) FROM statistic_customer_created WHERE MONTH(DATE_ADD(" + date + ", INTERVAL -3 MONTH)) = MONTH(statistic_customer_created.created) AND YEAR(" + date + ") = YEAR(statistic_customer_created.created))  as thisMonthsMinusThreeNumberOfCreatedUsers," +
                "       (SELECT count(statistic_customer_created.id) FROM statistic_customer_created WHERE MONTH(DATE_ADD(" + date + ", INTERVAL -4 MONTH)) = MONTH(statistic_customer_created.created) AND YEAR(" + date + ") = YEAR(statistic_customer_created.created))  as thisMonthsMinusFourNumberOfCreatedUsers," +
                "       (SELECT count(statistic_customer_created.id) FROM statistic_customer_created WHERE MONTH(DATE_ADD(" + date + ", INTERVAL -5 MONTH)) = MONTH(statistic_customer_created.created) AND YEAR(" + date + ") = YEAR(statistic_customer_created.created))  as thisMonthsMinusFiveNumberOfCreatedUsers," +
                "       (SELECT count(statistic_customer_created.id) FROM statistic_customer_created WHERE MONTH(DATE_ADD(" + date + ", INTERVAL -6 MONTH)) = MONTH(statistic_customer_created.created) AND YEAR(" + date + ") = YEAR(statistic_customer_created.created))  as thisMonthsMinusSixNumberOfCreatedUsers" +
                "";

例如：我可以做的一個解決方案（java）：（但是這會創建一個大查詢，並且我想采用一種更有效的方法）（順便說一句，這個示例不是有效的代碼，只是我想給你的東西，解決方案的想法）

---

管理員選擇查看20天/周/月

String addToQuery = "";
int daysWeeksMonthsToLookBack = inputFromUser // inputFromUser = 20 in this example
for(int i=0; i<daysWeeksMonthsToLookBack; i++){
  addToQuery += "       (SELECT count(statistic_customer_created.id) FROM statistic_customer_created WHERE DAYOFYEAR(DATE_ADD(" + date + ", INTERVAL -" + i + " DAY)) = DAYOFYEAR(statistic_customer_created.created) AND YEAR(" + date + ") = YEAR(statistic_customer_created.created)) as thisDaysMinusFiveNumberOfCreatedUsers," +

}

有人建議我如何更有效地做到這一點？ 提前致謝

Answer 1

我會用像

SELECT count(s.id) 
FROM statistic_customer_created s
WHERE s.created >= {date calculated in Java}

通過計算這些日期的差值，您可以獲取1到2天前創建的所有日期。

最近7天創建的數量和上周創建的數量應該相同。