专注于互联网--专注于架构

最新标签
网站地图
文章索引
Rss订阅

首页 »数据库 » sql批量修改数据:用SQL批量插入数据 »正文

sql批量修改数据:用SQL批量插入数据

来源: 发布时间:星期一, 2008年12月15日 浏览:103次 评论:0
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Software性能测试这几天主要测试CUBE采用ROLAP下PA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数据进行复制频率为每分钟10000条
主要用到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 o time_by_day (time_id,the_date)values('371',@the_date)

SET @the_date = @the_date + 1

SET @MyCounter = @MyCounter + 1

END


相关文章

读者评论

  • 共0条 分0页

发表评论

  • 昵称:
  • 内容: