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
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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 1
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