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https://issues.apache.org/jira/browse/DERBY-5505?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13152890#comment-13152890
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Dag H. Wanvik commented on DERBY-5505:
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Thanks for improving our docs in this area, Kim!
Kim> I can get rid of the error either by commenting out the first statement or
by rewriting the second one as follows:
This is because we now enforce the JDBC recommendation that result set columns
be read only once (and in order, not sure if we enforce that, I believe not)
for maximum portability. It turned out to be hard to allow multiple reads of a
lob result set column in the general case, so I think Kristian implemented this
new restriction. I think we do no enforce it for non-lob columns, though.
I'll have a look at your new sample programs.
> BLOB and CLOB Reference Manual topics could use some fixes
> ----------------------------------------------------------
>
> Key: DERBY-5505
> URL: https://issues.apache.org/jira/browse/DERBY-5505
> Project: Derby
> Issue Type: Improvement
> Components: Documentation
> Affects Versions: 10.8.2.2
> Reporter: Kim Haase
> Assignee: Kim Haase
> Priority: Minor
> Attachments: blobex.java, clobex.java
>
>
> The Reference Manual documentation on BLOBs and CLOBs has some gaps that I
> would like to fill as a result of my efforts to insert a BLOB into a table
> column. This should affect the following topics:
> CAST function (rrefsqlj33562.dita)
> CLOB data type (rrefclob.dita)
> BLOB data type (rrefblob.dita)
> A comment will provide further details.
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