ERROR WHILE INSERTING BLOBS AS PARAMETERS OF EXISTING STORED PROCEDURE

Question

I have 2 simple tables to keep large application data (as XMLDOCUMENT in one table and BLOB in another):
SQL> desc bindata_tbl;
Name Null? Type
BDATA_ID NOT NULL NUMBER(10)
BDATA NOT NULL BLOB
SQL> desc metadata_tbl;
Name Null? Type
MDATA_ID NOT NULL NUMBER(10)
MDATA NOT NULL SYS.XMLTYPE
and stored preocedure to input new data into those tables:
"SP_TEST_BIN_META_DATA"
i_MetaData in METADATA_TBL.MDATA%TYPE,
i_BinData in BINDATA_TBL.BDATA%TYPE
as
begin
if i_MetaData is not null then
insert into METADATA_TBL (MDATA_ID, MDATA)
values (METADATA_SEQ.nextval, i_MetaData);
end if;
if i_BinData is not null then
insert into BINDATA_TBL (BDATA_ID, BDATA)
values (BINDATA_SEQ.nextval, i_BinData);
end if;
COMMIT;
-- Handle exceptions
EXCEPTION
WHEN OTHERS THEN
ROLLBACK;
RAISE;
end;
I communicate with database from .Net application using "Oracle.DataAccess 10.1.0.200 (Runtime version v1.0.3705)" component.
Following procesure is a [simplified] examlple of the code I use, which demonstrates the errors while inserting XMLDOCUMENT and BLOB values simultaneously.
In my application those should be quite big objects (~200 K XML and ~5-25M binary image data), but following sample keeps failing even with very small-sized objects:
Line Number
1          private void PureTest()
2          {
3               OracleConnection conn = null;
4               OracleTransaction tx = null;
5               OracleCommand command = null;
6
7               try
8               {
9                    // Open connection
10                    string strConn = "Data Source=AthenaWf; User ID=AthenaWf; Password=Poseidon";
11                    conn = new OracleConnection( strConn );
12                    conn.Open();
13
14                    // Begin transaction (not sure if really needed)
15                    tx = conn.BeginTransaction();
16
17                    // Create command
18                    string strSql = "SP_TEST_BIN_META_DATA";
19                    command = new OracleCommand();
20                    command.Connection = conn;
21                    command.CommandText = strSql;
22                    command.CommandType = CommandType.StoredProcedure;
23
24                    // Create parameters
25                    // 1) XmlType parameter
26                    string strXml = "<?xml version=\"1.0\"?><configuration testValue=\"123456789\"/>";
27                    XmlDocument xmlDoc = new XmlDocument();
28                    xmlDoc.LoadXml( strXml );
29                    OracleXmlType oraXml = new OracleXmlType( conn, xmlDoc );
30                    //oraXml = null;
31                    //
32                    OracleParameter xmlPrm = new OracleParameter();
33                    xmlPrm.ParameterName = "i_MetaData";
34                    xmlPrm.Direction = ParameterDirection.Input;
35                    xmlPrm.OracleDbType = OracleDbType.XmlType;
36                    xmlPrm.Value = oraXml;
37                    command.Parameters.Add( xmlPrm );
38
39                    // 2) Blob type
40                    byte[] buf = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9};
41                    OracleBlob oraBlob = new OracleBlob( conn, true );
42                    //oraBlob.Write( buf, 0, buf.Length );
43                    oraBlob = null;
44                    //
45                    OracleParameter blobPrm = new OracleParameter();
46                    blobPrm.ParameterName = "i_BinData";
47                    blobPrm.Direction = ParameterDirection.Input;
48                    blobPrm.OracleDbType = OracleDbType.Blob;
49                    blobPrm.Value = oraBlob;
50                    command.Parameters.Add( blobPrm );
51
52
53                    // Execute command finally
54                    command.ExecuteNonQuery();
55                    tx.Commit();
56               }
57               catch( Exception ex )
58               {
59                    // Clean-up
60                    if( command != null )
61                    {
62                         command.Dispose();
63                    }
64                    if( tx != null )
65                    {
66                         tx.Dispose();
67                    }
68                    if( conn != null )
69                    {
70                         conn.Dispose();
71                    }
72
73                    // Display error message
74                    MessageBox.Show( ex.Message, "Error" );
75               }
76          }
If I try insert only XMLDOCUMENT object (lines 30, 42 are commented out, 43 IS NOT) - everything is OK.
If I try to insert only BLOB object (lines 30, 42 are NOT COMMENTED OUT, line 43 is commented out) - everything is OK again.
If I try to insert them both having some values (lines 30, 43 are commented out, 42 is not commented out) - it fails right on "command.ExecuteNonQuery();" (line 54)
with the following exception:
"ORA-21500: internal error code, arguments: [%s], [%s], [%s], [%s], [%s], [%s], [%s], [%]".
Even when I nullify oraBlob before assigning it to OracleParameter value (line 30 is commented out, line 42 and 43 are not) I have the same exception.
XMLDOCUMENT and DLOB data logically are very coupled objects (in my application), so I really want to insert them simultaneously in one stored procedure in transactional way.
Is it bug of drivers, server, .net environment, or I miss something in implementation?
PS. In some articles on Oracle web and in MSDN site I found a mention about necessity of wrapping all write/update operations in a transaction, while working with temporary LOBs. I use it here, but it does not look like changing anything.

Answer 1

Hello,
I tested your code with the 10.1.0.4.0 ODP and 10.1.0.4.0 Client and it worked fine.
Can you please apply the 10.1.0.4.0 patches for both ODP and client to see if this resolves the issue for you.
Here is the output from the same execution of the ODP application you provided as a testcase. These rows were inserted at the same time when I executed the application and passed the data as parameters to the SP you provided.
Results of Testing with 10.1.0.4.0
==========================
SQL> select count(*) from BINDATA_TBL
2 ;
COUNT(*)
1
SQL> select count(*) from METADATA_TBL;
COUNT(*)
1
SQL> select dbms_lob.getlength(bdata) from BINDATA_TBL;
DBMS_LOB.GETLENGTH(BDATA)
10
SQL> select mdata from METADATA_TBL;
MDATA
<?xml version="1.0"?><configuration testValue="123456789" />