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用SQL批量插入数据-数据库

发布时间:2011-11-12 浏览:4616

  最近忙于公司BI软件性能测试,这几天主要测试CUBE采用ROLAP下,PA的并发和稳定性。涉及表和维度,立方:事实表sales_fact_1997,维度表time_by_day;立方:sales 修改内容:删除原来的TIME维度,新建TIME维度,修改SALES立方。

  数据插入:

  1,事实数据插入:通过DTS加调度实现将sales_fact_1997的数据进行复制。频率为每分钟10000条。

  主要用到的SQL语句:select top 10000 * from sales_fact_1997

  2,维度数据插入:通过SQL语句插入数据到time_by_day.

  测试用到的SQL语句:

  1,单条插入

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,单条插入:

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 + 1)
      AS the_year, MONTH(the_date + 1) AS month_of_year, { 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,循环插入:

DECLARE @MyCounter INT
SET @MyCounter = 0            /*设置变量*/
WHILE (@MyCounter < 2)     /*设置循环次数*/
BEGIN
WAITFOR DELAY '000:00:10'   /*延迟时间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, MONTH(the_date + 1) AS month_of_year, { fn QUARTER(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,插入以时间为变量的数据

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'
/*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, MONTH(the_date + 1) AS month_of_year, { fn QUARTER(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)
SET @the_date = @the_date + 1
SET @MyCounter = @MyCounter + 1
END

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