setObject(int targetType, Blob source) and setObject(int targetType, Clob 
source) should disallow updates on all targetTypes except BLOB and CLOB 
respectively
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                 Key: DERBY-2430
                 URL: https://issues.apache.org/jira/browse/DERBY-2430
             Project: Derby
          Issue Type: Sub-task
          Components: Network Client
         Environment: All
            Reporter: V.Narayanan


updateBlob(int columnIndex, Blob x), updateClob(int columnIndex, Clob x) can be 
implemented by forwarding calls to  setObject(int targetType, Blob source), 
setObject(int targetType, Clob source). If this this done then

1) updateClob on a CHAR/VARCHAR/LONG VARCHAR column throws an exception on the 
Embedded Driver but not on the NetworkClient
2) updateBlob works on a CHAR/VARCHAR/LONG VARCHAR FOR BIT DATA throws an 
exception on the Embedded Driver but not on the NetworkClient

>From what the JDBC 4.0 spec says (pg 198 table b-5) the Embedded behaviour 
>seems to be correct.

This can be fixed by Matching Embedded behaviour. This would involve throwing 
an exception in the cases mentioned above



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