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作者：曾進(qq:310575)
最近忙於公司BI軟體效能測試，這幾天主要測試CUBE採用ROLAP下，PA的同時和穩定性。
涉及表和維度，立方：事實表sales_fact_1997,維度表time_by_day；立方:sales
修改內容：刪除原先的TIME維度，新建TIME維度，修改SALES立方。
資料插入：
1，事實資料插入：透過DTS加調度實現將sales_fact_1997的資料進行複製。頻率為每分鐘10000條。
主要用到的SQL語句：select top 10000 * from sales_fact_1997
2,維度資料插入：透過SQL語句插入資料到time_by_day.
測試用到的SQL語句：
1,單條插入
INSERT INTO time_by_day
(time_id, the_date, the_year, month_of_year, quarter,day_of_month)
VALUES ('1101', '1999-10-1', '1999', '10', 'Q4','1')
2,單條插入:
INSERT INTO time_by_day
(time_id, the_date, the_year, month_of_year, quarter, day_of_month)
SELECT TOP 1 time_id + 1 AS time_id, the_date + 1 AS the_date, YEAR(the_date + time_id, the_date + 1
AS the_date, YEAR(the_date + 199_l. fn QUARTER(the_date + 1)
} AS quarter, DAY(the_date + 1) AS day_of_month
FROM time_by_day
ORDER BY time_id DESC
3,循環插入：
DECLARE @MyCounter INT
SET @MyCounter = 0 /*設定變數*/
WHILE (@MyCounter < 2) /*設定循環次數*/
BEGIN
WAITFOR DELAY '000:00:10' /*延遲時間10秒*/
INSERT INTO time_by_day
(time_id, the_date, the_year, month_of_year, quarter, day_of_month)
SELECT TOP 1 time_id + 1 AS time_id, the_date + 1 AS the_date, YEAR(the_date + 1)
AS the_year, the_date + 1)
} AS quarter, DAY(the_date + 1) AS day_of_month
FROM time_by_day
ORDER BY time_id DESC
SET @MyCounter = @MyCounter + 1
END
4,插入以時間為變數的數據
DECLARE @MyCounter INT
declare @the_date datetime
SET @MyCounter = 0
SET @the_date = '1999-1-4'
WHILE (@MyCounter < 200000)
BEGIN
WAITFOR DELAY '000:00:10'
/time_ate
IN , the_year, month_of_year, quarter, day_of_month)
SELECT TOP 1 time_id + 1 AS time_id, the_date + 1 AS the_date, YEAR(the_date + 1)
AS the_year, MONTH(the_date + 1(the_date + 1) AS the_year, MONTH(the_date + 1.
} AS quarter,DAY
(the_date
+ 1) AS day_of_month
FROM time_by_day
ORDER BY time_id DESC
*/
insert into time_by_day (time_id,the_date)values('371',@the_date) @the_date）
MyCounter + 1
END