Invalid OCI Handle when storing Blob in Oracle 11g with OCCI

Question

Hi,
I'm getting Invalid OCI Handle ORA-32102 while execute the following code:
try
               env=Environment::createEnvironment(Environment::OBJECT);
               connPool = env->createConnectionPool(userName, password,
                         database, minConn, maxConn, incrConn);
               conn=connPool->createConnection(userName,password);
               Blob blobRequest(conn);
               blobRequest.open(OCCI_LOB_WRITEONLY);
               unsigned int bytesReqWritten = blobRequest.write((unsigned int)bytesOut, req_buffer, (unsigned int)bytesOut);
               cout << "Request bytes written "<< bytesReqWritten << endl;
               blobRequest.close();
               Blob blobResponse(conn);
               blobResponse.open(OCCI_LOB_WRITEONLY);
               unsigned int bytesRespWritten = blobResponse.write((unsigned int)bytesAckOut, resp_buffer, (unsigned int)bytesAckOut);
               cout << "Response bytes written "<< bytesRespWritten << endl;
               blobResponse.close();
               stmt = conn->createStatement("BEGIN STORE_REQUEST(:1,:2); END;");
               stmt->setBlob(1,blobRequest); <------------------------- Blob here
               stmt->setBlob(2,blobResponse); <------------------------- Blob here
               stmt->executeUpdate();
catch(SQLException &e)
               cout << "Error in Constructor Call " << endl;
               cout << "Error Number: " << e.getErrorCode() << endl;
               cout << e.getMessage() << endl;
     conn->terminateStatement(stmt);
     connPool->terminateConnection (conn);
     env->terminateConnectionPool (connPool);
     Environment::terminateEnvironment(env);
Anyone can help me? Please.
Kind Regards, denis

Answer 1

Hi,
The correct code for insert blobs must be writed like this:
try
env=Environment::createEnvironment(Environment::OBJECT);
connPool = env->createConnectionPool(userName, password,
database, minConn, maxConn, incrConn);
conn=connPool->createConnection(userName,password);
//1. First insert empty blobs in tables...
Blob blobRequest;
blobRequest.setEmpty(conn);
Blob blobResponse;
blobResponse.setEmpty(conn);
stmt = conn->createStatement("BEGIN STORE_REQUEST(:1,:2); END;");
stmt->setBlob(1,blobRequest);
stmt->setBlob(2,blobResponse);
stmt->executeUpdate();
//2.Select Blobs for update and commit
stmt2 = conn->createStatement("SELECT REQUEST,RESPONSE FROM STORE WHERE ID=:ID FOR UPDATE");
stmt2->setString(1,id.c_str());
ResultSet *rs = stmt2->executeQuery();
if(rs->next())
blobRequest = rs->getBlob(1);
blobRequest.write((unsigned int)bytesOut, req_buffer, (unsigned int)bytesOut);
blobResponse = rs->getBlob(2);
blobResponse.write((unsigned int)bytesAckOut, resp_buffer, (unsigned int)bytesAckOut);
conn->commit();
else
conn->rollback();
catch(SQLException &e)
cout << "Error in Constructor Call " << endl;
cout << "Error Number: " << e.getErrorCode() << endl;
cout << e.getMessage() << endl;
stmt2->closeResultSet(rs);
conn->terminateStatement(stmt);
conn->terminateStatement(stmt2);
connPool->terminateConnection (conn);
env->terminateConnectionPool (connPool);
Environment::terminateEnvironment(env);