Error in a clob mapping

Hi
I am using oracle 11g as both source and target database.
I am using a table having clob column as source and using expression (substr(col,1,4000))
then inserting into target table.
Sequence of the mapping is as follows
Source_table , joiner to other tables , expression_to_substring max 4000 , insert into target table
I get the below error
ORA-22835: Buffer too small for CLOB to CHAR or BLOB to RAW conversion (actual: 8000, maximum: 4000)
Deployment of mapping is good, I get this error while execution the mapping
Please can some one suggest ?
Is there any better way >
Regards
S
Edited by: WIP on Jun 12, 2012 12:59 PM

WIP wrote:
Hi
I am using oracle 11g as both source and target database.
I am using a table having clob column as source and using expression (substr(col,1,4000))
then inserting into target table.Can you use DBMS_LOB.SUBSTR(col,1,4000))
>
Sequence of the mapping is as follows
Source_table , joiner to other tables , expression_to_substring max 4000 , insert into target table
I get the below error
ORA-22835: Buffer too small for CLOB to CHAR or BLOB to RAW conversion (actual: 8000, maximum: 4000)
Deployment of mapping is good, I get this error while execution the mapping
Please can some one suggest ?
Is there any better way >
Regards
S
Edited by: WIP on Jun 12, 2012 12:59 PM

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Hi,
I have an application that i'm running with MySQL and Oracle at the same
time. At some point, i need to use a 'clob' mapping. When i do this, it
just works fine with oracle but it fails with mysql. i have the exception:
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if i use a value mapping, it works with MySQL but fails with Oracle (I
have sql error because a clob is used in a distinct select).
In the manual, it is written "Note that some databases can support
string of unlimited length without using a CLOB; when this is the case
the mapping tool will install a value mapping in favor of
this mapping.". So apparently, this is not the case with MySQLDictionary.
To solve my problem and have my code working with both databases, i had
to extend the MySQLDictionary and overwrite the replaceFieldMapping
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mysel and would expect this behaviour to be solved quite soon.
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Mark.

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