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Date: Tue, 22 Oct 2013 17:14:46 +0000 (UTC)
From: "Kim Haase (JIRA)" <jira@apache.org>
To: derby-dev@db.apache.org
Message-ID: <JIRA.12675025.1382447874999.105038.1382462086857@arcas>
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Subject: [jira] [Assigned] (DERBY-6388) Example WHERE CURRENT OF clause in
 Reference Guide is nonsense
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     [ https://issues.apache.org/jira/browse/DERBY-6388?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Kim Haase reassigned DERBY-6388:
--------------------------------

    Assignee: Kim Haase

> Example WHERE CURRENT OF clause in Reference Guide is nonsense
> --------------------------------------------------------------
>
>                 Key: DERBY-6388
>                 URL: https://issues.apache.org/jira/browse/DERBY-6388
>             Project: Derby
>          Issue Type: Bug
>          Components: Documentation
>    Affects Versions: 10.11.0.0
>            Reporter: Rick Hillegas
>            Assignee: Kim Haase
>
> The Reference Guide section titled "WHERE CURRENT OF clause" provides some sample code. The code doesn't even compile. It has a number of defects:
> 1) Autocommit needs to be turned on.
> 2) The cursor name needs to be ALL CAPS in the s.setCursorName() statement.
> 3) The ResultSet needs to be created from the statement and can't be created directly from the connection.
> 4) The ResultSet needs to be positioned before the UPDATE is run.
> The following cleaned-up code compiles and runs correctly:
>         conn.setAutoCommit( false );
>         Statement s = conn.createStatement();
>         s.setCursorName("AIRLINESRESULTS");
>         ResultSet rs = s.executeQuery(
>                                          "SELECT Airline, basic_rate " +
>                                          "FROM Airlines FOR UPDATE OF basic_rate");
>         rs.next();
>         Statement s2 = conn.createStatement();
>         s2.executeUpdate("UPDATE Airlines SET basic_rate = basic_rate " +
>                          "+ .25 WHERE CURRENT OF AirlinesResults");


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