用SQL批量插入数据


声明:本文为作者原创,转载者必须注明。   作者:曾进 (qq:310575)   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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