如何选择另一个选择查询的结果的第10、20、30 ...行 [英] How can I select 10th, 20th, 30th ... row of the result of another select query

问题描述

我有一个表，该表的列为to，from和ID.我只需要选择每10个ID从A到B的行.

解决方案

select * from 
(select * from table where from = 'A' and to ='B' order by ID)
where mod(rownum/10,1) = 0

它首先只将那些从"A"到"B"的数字，然后给它们行号，并仅选择第20个ETC位置的第10个数字.

I have a table with a column to, from and ID. I need to select only rows with every 10th ID which is from A to B.

解决方案

select * from 
(select * from table where from = 'A' and to ='B' order by ID)
where mod(rownum/10,1) = 0

It first takes only those from 'A' to 'B', then giving them rownums, and selecting only those in the 10th 20th ETC places..

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