[英]SQL: How do I save a query result as a new temp table?
我是SQL初學者。 如何將A部分的查詢結果(已經有多個使用WITH子句的子查詢)保存為新的臨時表,以便我可以將其用於B部分的查詢(因為B部分的聚合是基於A部分的) ? 最后,我想分開A部分和B部分的結果。 我試圖從其他帖子中解決,但它似乎對我的問題不起作用,因為我有多個使用 WITH 子句的子查詢)。 預先感謝您的幫助!
/****** Part A ******/
WITH DL_source AS
(SELECT
LogID
,HashID
,DeviceDateTime
,LAG(DeviceDateTime, 1) OVER (PARTITION BY HashID ORDER BY HashID, DeviceDateTime, LogID) AS Last_DeviceDateTime
,TotalSecondsSpent
,PageViews
,Pages
,PrevPage
,IEM
,CommCode
,ContentTag
,SearchKeyword
,TaggedMember
,TargetMember
FROM (SELECT
ROW_NUMBER() OVER(ORDER BY HashID, DeviceDate, HourOfDay, MinOfHour, SecOfMin) AS LogID
,HashID
,CAST(DeviceDate AS DATETIME)
+ CAST(TIMEFROMPARTS(HourOfDay, MinOfHour, SecOfMin,0 ,0) AS DATETIME) AS DeviceDateTime
,TotalSecondsSpent
,PageViews
,Pages
,PrevPage
,IEM
,CommCode
,ContentTag
,SearchKeyword
,TaggedMember
,TargetMember
FROM [DM_RAW].[dbo].[WebAnalyticsVisit]
WHERE DeviceDate IS NOT NULL
AND DeviceDate <> '1900-01-01'
AND HashID IS NOT NULL
AND HashID <> '') AS DL_DateTime),
DL_Session_Source AS (
SELECT
LogID
,HashID
,DeviceDateTime
,Last_DeviceDateTime
,DATEDIFF(MINUTE, DeviceDateTime, LEAD(DeviceDateTime, 1) OVER(PARTITION BY HashID ORDER BY DeviceDateTime ASC)) AS Min_btw_Page
,CASE WHEN DATEDIFF(minute, Last_DeviceDateTime, DeviceDateTime) <30 THEN 0 ELSE 1 END AS New_Session_flag
,TotalSecondsSpent
,PageViews
,Pages
,PrevPage
,IEM
,CommCode
,ContentTag
,SearchKeyword
,TaggedMember
,TargetMember
FROM DL_source)
SELECT
LogID
,HashID
,DeviceDateTime
,Last_DeviceDateTime
,Min_btw_Page
,New_Session_flag
,SUM(New_Session_flag) OVER (ORDER BY HashID, DeviceDateTime, LogID) AS Session_Num
,TotalSecondsSpent
,PageViews
,Pages
,PrevPage
,IEM
,CommCode
,ContentTag
,SearchKeyword
,TaggedMember
,TargetMember
FROM DL_Session_Source
/****** Part B ******/
SELECT *,
Session_Num
,HashID
,COUNT(*) AS Num_Page
,MIN(DeviceDateTime) AS First_Page
,MAX(DeviceDateTime) AS Last_Page
FROM #cte_Visit_Record_cheunghm4532
GROUP BY Session_Num, HashID
Quick'n'easy 選項:當您到達 A 部分底部的 SELECT 部分時,放入一個INTO表達式。
請注意這些語句,為了簡潔/清晰,我減少了字段等的數量並替換為...
WITH DL_source AS
(SELECT
... ),
DL_Session_Source AS (
SELECT ...
FROM DL_source)
SELECT
LogID
,HashID
...
,TargetMember
INTO #cte_Visit_Record_cheunghm4532 -- Added this row
FROM DL_Session_Source;
請注意,上面創建了一個新表 - 它不會插入到現有表中。
更徹底/靈活的版本是首先創建臨時表,然后代替上面的 SELECT,使其成為 INSERT 例如,
CREATE TABLE #cte_Visit_Record_cheunghm4532 (LogID int, HashID varchar(32), ...);
WITH DL_source AS
(SELECT
... ),
DL_Session_Source AS (
SELECT ...
FROM DL_source)
INSERT INTO #cte_Visit_Record_cheunghm4532 (LogID, HashID, ...)
SELECT LogID
,HashID
...
FROM DL_Session_Source;
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