在DB2中获取行 [英] Fetching rows in DB2
本文介绍了在DB2中获取行的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我知道在DB2(使用9.7版)中,可以使用以下查询选择表的前10行:
I know in DB2 (using version 9.7) I can select the first 10 rows of a table by using this query:
SELECT *
FROM myTable
ORDER BY id
FETCH FIRST 10 ROWS ONLY
但是如何获取第11至20行?
我无法使用主键或ID来帮助我...
But how can I get, for example, rows 11 to 20? I can't use the primary key or the ID to help me...
预先感谢!
推荐答案
这是一个示例查询,将从表中获取包含状态名称,缩写等的行。
Here's a sample query that will get rows from a table contain state names, abbreviations, etc.
SELECT *
FROM (
SELECT stabr, stname, ROW_NUMBER() OVER(ORDER BY stname) AS rownumber
FROM states
WHERE stcnab = 'US'
) AS xxx
WHERE rownumber BETWEEN 11 AND 20 ORDER BY stname
编辑:
ORDER BY
是必要的,以确保查询执行之间行编号是一致的
。
ORDER BY
is necessary to guarantee that the row numbering is consistent between executions of the query.
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