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From "Siddharth Srivastava (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (DERBY-3676) Make the toString() method of Derby PreparedStatements print out SQL text with ? parameters replaced by the values that have been set so far
Date Sun, 21 Aug 2011 18:32:27 GMT

     [ https://issues.apache.org/jira/browse/DERBY-3676?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Siddharth Srivastava updated DERBY-3676:
----------------------------------------

    Attachment: d3676.patch

The attached patch gives the output of the ps.toString() as discussed earlier. Please review
it.

I have a few doubts:
I have included the tests for this patch in PrepareStatementTest (Is that ok ? ) (Tests not
in the patch at the moment)
Secondly, how to get CacheID in the tests now. As we have replaced the toString() method of
EmbedPreparedStatement ?
Would it be a good idea to have an interface like PreparedStatementCacheID, having a method
getCacheId(), 
which returns the cacheID for EmbedPreparedStatement and returns null for PreparedStatement
(client) ?



> Make the toString() method of Derby PreparedStatements print out SQL text with ? parameters
replaced by the values that have been set so far
> --------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: DERBY-3676
>                 URL: https://issues.apache.org/jira/browse/DERBY-3676
>             Project: Derby
>          Issue Type: Improvement
>          Components: JDBC
>            Reporter: Rick Hillegas
>            Assignee: Siddharth Srivastava
>         Attachments: d3676.patch, humanstringprepared.txt, humanstringprepared.txt, humanstringprepared.txt,
humanstringprepared.txt, humanstringprepared.txt, humanstringprepared.txt, humanstringprepared.txt,
ick.txt, ick.txt, prepared.diff, statementCacheVTI.sql
>
>
> This topic came up in the following email thread on the user list: http://www.nabble.com/PreparedStatement.toString%28%29---nice-formatting-td17250811.html#a17250811
Here's what the thread requests: 
> "In mysql, a toString() on a PreparedStatement will do this, eg "select x
> from foo where x.a = ?" will become "select x from foo where x.a = 1" with
> the appropriate setValue() call."
> At first blush, this seems like it might be a simple project for a newcomer.

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