[jira] Updated: (DERBY-3583) Derby should throw a better error message if a BLOB/CLOB column is accessed more than once

["Kathey Marsden (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/DERBY-3583?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Kathey Marsden updated DERBY-3583:
----------------------------------

    Component/s: JDBC

> Derby should throw a better error message if a BLOB/CLOB column is accessed more than once
> ------------------------------------------------------------------------------------------
>
>                 Key: DERBY-3583
>                 URL: https://issues.apache.org/jira/browse/DERBY-3583
>             Project: Derby
>          Issue Type: Improvement
>          Components: JDBC
>            Reporter: Kathey Marsden
>            Assignee: Kathey Marsden
>            Priority: Minor
>
> With the DERBY-2892 fix  revision 642974, users can no longer access a BLOB/CLOB column more than once for each row.  Currently the error message is
> XJ217 - You cannot invoke other java.sql.Clob/java.sql.Blob methods after calling the free() method or after the Blob/Clob's transaction has been committed or rolled back.
> I don't know that that makes sense given the user called getString()
> For getCharacterStream()/getBinaryStream() there is no error on the call, just an IOException on the read.
> We should throw a clearer error message, that the user is not allowed to make multiple getXXX calls on a BLOB/CLOB column for each row.

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