[英]Query records where time in mutilple ranges in SQL Server
我想從“ tData”中獲取記錄,其中臨時時間范圍表“ tTime”中的FooTime列值
tData表:
FooTime Value 2010-01-01 00:15 3 2010-01-01 00:30 2 2010-01-01 00:45 4 2010-01-01 01:00 5 2010-01-01 01:15 1 2010-01-01 01:30 3 2010-01-01 01:45 4 2010-01-01 02:00 12 2010-01-01 02:15 13 2010-01-01 02:30 12 2010-01-01 02:45 14 2010-01-01 03:00 15 2010-01-01 03:15 3 2010-01-01 03:30 2 2010-01-01 03:45 3 2010-01-01 04:00 5 .......... .......... .......... 2010-01-02 00:15 3 2010-01-02 00:30 2 2010-01-02 00:45 4 2010-01-02 01:00 5 2010-01-02 01:15 1 2010-01-02 01:30 3 2010-01-02 01:45 4 2010-01-02 02:00 12 2010-01-02 02:15 13 2010-01-02 02:30 12 2010-01-02 02:45 14 2010-01-02 03:00 15 2010-01-02 03:15 3 2010-01-02 03:30 2 2010-01-02 03:45 3 2010-01-02 04:00 5 .......... .......... ..........
時間時間表:
StartTime EndTime 2010-01-01 02:00 2010-01-01 06:00 2010-01-02 02:00 2010-01-02 06:00 .... .... ....
根據上述示例數據,由於時間原因應返回以下記錄:
FooTime Value 2010-01-01 02:00 12 2010-01-01 02:15 13 2010-01-01 02:30 12 2010-01-01 02:45 14 2010-01-01 03:00 15 2010-01-01 03:15 3 2010-01-01 03:30 2 2010-01-01 03:45 3 2010-01-01 04:00 5 ... ... 2010-01-01 06:00 3 2010-01-02 02:00 12 2010-01-02 02:15 13 2010-01-02 02:30 12 2010-01-02 02:45 14 2010-01-02 03:00 15 2010-01-02 03:15 3 2010-01-02 03:30 2 2010-01-02 03:45 3 2010-01-02 04:00 5 ... ... 2010-01-02 06:00 3
請注意不同日期的時間范圍可能會有所不同,例如:tTime表:
StartTime EndTime 2010-01-01 02:00 2010-01-01 06:00 2010-01-02 19:00 2010-01-02 24:00 .... .... ....
我不在裝有MS SQL的計算機附近,但這應該可以解決問題:
SELECT tData.*
FROM
tData
LEFT JOIN tTime
ON CONVERT(VARCHAR(10), tTime.StartTime, 101) = CONVERT(VARCHAR(10), tData.FooTime, 101)
WHERE
tData.FooTime BETWEEN tTime.StartTime AND tTime.EndTime
本質上是根據StartTime和FooDate的Date(無時間)部分連接兩個表,然后在WHERE子句中使用BETWEEN。
正如我所說,我無法在這台筆記本電腦上對此進行測試,但我會說它可以工作。
編輯:根據您的示例,假設tTime表中每行只有1天
編輯:剛剛記住,您應該可以在JOIN條件中使用BETWEEN,因此應該更好:
SELECT tData.*
FROM
tData
INNER JOIN tTime
ON tData.FooTime BETWEEN tTime.StartTime AND tTime.EndTime
SELECT FooTime, Value
FROM tData INNER JOIN tTime
ON (tData.FooTime >= tTime.StartTime AND tData.EndTime <= tTime.StopTime)
我不記得是否在join子句中允許在Between之間,但是如果它是:
SELECT FooTime, Value
FROM tData INNER JOIN tTime
ON (tData.FooTime BETWEEN tTime.StartTime AND tData.EndTime)
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