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From "Kathey Marsden (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DERBY-6214) PreparedStatement.setObject(int, Object, Types.CLOB) fail with DerbyNet
Date Wed, 08 May 2013 16:19:16 GMT

    [ https://issues.apache.org/jira/browse/DERBY-6214?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13652024#comment-13652024

Kathey Marsden commented on DERBY-6214:

Actually even setString says it converts to VARCHAR or LONGVARCHAR

Is setString valid with a CLOB target?
What is the correct (according to spec) way to set a value for a Clob, setCharacterStream?

> PreparedStatement.setObject(int, Object, Types.CLOB) fail with DerbyNet
> -----------------------------------------------------------------------
>                 Key: DERBY-6214
>                 URL: https://issues.apache.org/jira/browse/DERBY-6214
>             Project: Derby
>          Issue Type: Bug
>    Affects Versions:,
>            Reporter: Rong Qu
>         Attachments: Derby6214.java, Derby6214_setup.sql, derby.log, DerbyNet_client_test.sql
> The issue is specific to the DerbyNet client driver, and doesn't seem to occur using
embedded Derby.
>  "PreparedStatement.setObject(int, Object, Types.CLOB)". It seems to be a problem updating
a CLOB column with a parameterized value using the DerbyNet client driver, and if the update
SQL ends up updating more than one row. I attached a simple test case that just uses JDBC
to reproduce the error. The exception looks like this:
> org.apache.derby.client.am.BatchUpdateException: Non-atomic batch failure.  The batch
was submitted, but at least one exception occurred on an individual member of the batch. Use
getNextException() to retrieve the exceptions for specific batched elements.
>     at org.apache.derby.client.am.Agent.endBatchedReadChain(Unknown Source)
>     at org.apache.derby.client.am.PreparedStatement.executeBatchRequestX(Unknown Source)
>     at org.apache.derby.client.am.PreparedStatement.executeBatchX(Unknown Source)
>     at org.apache.derby.client.am.PreparedStatement.executeBatch(Unknown Source)
>     ...
> Caused by: org.apache.derby.client.am.SqlException: Error for batch element #0: An unexpected
exception was thrown
>     at org.apache.derby.client.am.Statement.completeExecute(Unknown Source)
>     at org.apache.derby.client.net.NetStatementReply.parseEXCSQLSTTreply(Unknown Source)
>     at org.apache.derby.client.net.NetStatementReply.readExecute(Unknown Source)
>     at org.apache.derby.client.net.StatementReply.readExecute(Unknown Source)
>     at org.apache.derby.client.net.NetPreparedStatement.readExecute_(Unknown Source)
>     at org.apache.derby.client.am.PreparedStatement.readExecute(Unknown Source)
>     ... 4 more
> Caused by: org.apache.derby.client.am.SqlException: Error for batch element #0: Java
exception: 'Stream has already been read and end-of-file reached and cannot be re-used.: java.io.EOFException'.
>     at org.apache.derby.client.am.SqlException.<init>(Unknown Source)
>     at org.apache.derby.client.am.SqlException.<init>(Unknown Source)
>     ... 10 more

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