用SQL数据库批量插入数据简介

用SQL数据库批量插入数据简介2008-05-09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