Database Connection Lost Error

Hi,
MyScenario is :
We send a query to database A collect resultset in java mapping and transform it to three more Select queries and send them to Database B So two chanels are there:
Sender JDBC channel, Receiver JDBC Channel.
Now the Output of Database B is converted to IDOC and sent to R/3 System.
This is working fine, but sometime it stuck at Database B saying error "connection Lost". And works fine afterwards.But in that case we miss the records which could not be processed.
What can be the reason for this ? Please suggest the solution at teh earliest. Can overloading be the reason for losing connection. Please suggest...
Thanks & Regards,
Priyanka

Hi Priyanka,
You have to close the connection afte accessing the JDBC "A".
So that it could be accesed by others.
Try to implement the suggetion given by sarvesh.
If it still does not work then i would say you go for JDBC look ups.
It will improve the performance as well.
Thanks
Sunil Singh

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Schema document:
<?xml version="1.0" encoding="UTF-8"?>
<xsd:schema xmlns:s="http://www.w3.org/2001/XMLSchema" xmlns:xsd="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified" attributeFormDefault="unqualified">
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          <xsd:documentation xml:lang="en">
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XML document:
<?xml version="1.0" encoding="UTF-8"?>
<BDDString><Path>USA</Path></BDDString>
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Validation error:
<?xml version="1.0" encoding="UTF-8"?>
<BDDString
Error at (2,14): The element 'BDDString' has invalid child element 'Path'. An error occurred at , (2, 14).
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<Path>USA</Path></BDDString>ORACLE validation:
Declare
     xmlObj XMLType;
begin
     xmlObj := XMLType('<?xml version="1.0" encoding="UTF-8"?><BDDString><Path>USA</Path></BDDString>',
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end;
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*** SCRIPT START : Session:M1GLOBAL_DEV15@MATRIX(5) 3-мар-2005 14:05:41 ***
Start SQL Editor Execution ...
Processing ...
xmlObj := XMLType('<?xml version="1.0" encoding="UTF-8"?>
ORA-03113: end-of-file on communication channel
*** SCRIPT END : Session:M1GLOBAL_DEV15@MATRIX(5) 3-мар-2005 14:08:02 ***
End SQL Editor Execution
Task "SQL Editor Execution": Operation aborted
SQL Editor Execution terminated with errors
Task "SQL Editor Execution" in DoTerminate(): Session Manager: No connection to M1GLOBAL_DEV15@MATRIX
Help!
Question:
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