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From "Tiago R. Espinha (JIRA)" <j...@apache.org>
Subject [jira] Commented: (DERBY-4192) OFFSET and FETCH FIRST documentation improvement
Date Wed, 29 Apr 2009 20:47:30 GMT

    [ https://issues.apache.org/jira/browse/DERBY-4192?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12704327#action_12704327
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Tiago R. Espinha commented on DERBY-4192:
-----------------------------------------

Thanks Kim, for the revisions. They look good to me so unless someone else objects to it,
you can go ahead and commit the patch.

> OFFSET and FETCH FIRST documentation improvement
> ------------------------------------------------
>
>                 Key: DERBY-4192
>                 URL: https://issues.apache.org/jira/browse/DERBY-4192
>             Project: Derby
>          Issue Type: Improvement
>    Affects Versions: 10.5.1.1
>            Reporter: Tiago R. Espinha
>            Assignee: Tiago R. Espinha
>            Priority: Minor
>         Attachments: derby-4192-2.patch, derby-4192.patch, derby-4192.patch, refderby.pdf,
rrefsqljoffsetfetch.html
>
>
> I have a suggestion regarding the documentation for the OFFSET and FETCH FIRST documentation.
On these documents, we have three SQL examples on the usage of these clauses. I suggest that
we add a brief description of what each clause does.
> This might help the users to have a better understanding at first of how the said clauses
work.
> Here are the examples with a possible description:
> -- This query fetches the first row from T
> SELECT * FROM T FETCH FIRST ROW ONLY;
> -- This query skips the first 10 rows and fetches the following 10.
> -- It will fetch rows 11 through 20 (inclusive) from the table T, sorted by I
> SELECT * FROM T ORDER BY I OFFSET 10 ROWS FETCH NEXT 10 ROWS ONLY;
> -- This query skips the first 100 rows from T.
> -- If the table has less than 101 records, then an empty result set is returned.
> SELECT * FROM T OFFSET 100 ROWS;

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