问题描述
我有4个表,我在选择查询的连接帮助下从中选择数据...我想要每条记录取一个序列号(行号).首先提取的记录应为1,然后为2,依此类推...
I have 4 tables, from which i select data with help of joins in select query...I want a serial no.(row number) per record as they are fetched. first fetched record should be 1, next 2 and so on...
在Oracle中,RowNum中的等价物.
In oracle the equiavelent in RowNum.
推荐答案
Brettski的答案是ASP风格的,需要大量编辑.
The answer by Brettski is ASP flavored and would need a lot of editing.
SELECT DCOUNT("YourField","YourTable","YourField <= '" & [counter] & "'")
AS RowNumber,
YourField as counter FROM YourTable;
以上是您的基本语法.您可能会发现运行速度很慢.我的典型解决方案是具有自动编号"字段的存储桶表.这似乎很麻烦,但是它可以控制我,并且在这种情况下,它可以提高速度.
Above is your basic syntax. You are likely to find this runs very slow. My typical solution is a bucket table with Autonumber field. That seems kludgy, but it gives me control and probably in this case it allows speed.
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