JDBC Thin Client and Oracle Long Datatype

Question

I am using Wepshere 4.0.2 , JDBC 2.0 (thin driver) and oracle 9i.
I have a procedure which takes Oracle Long Datatype as its parameter.
I use following code to execute procedure.
String dataforsql="AAA000000003 123123 07/01/200301/01/2003";
byte[] bytes = dataforsql.getBytes();
InputStream is = new ByteArrayInputStream(bytes);
cstmt=conn.prepareCall("call nscw.CPPF_SAVEPDCRAWTABLE2(?,?,?)");
cstmt.setAsciiStream (1, is,bytes.length);
The above code works perfectly for data upto 4000 bytes. Once the data crosses the 4000 mark.
i get a procedure error
ORA-01460: unimplemented or unreasonable conversion requested

Answer 1

cstmt.setAsciiStream (1, is,bytes.length);Oracle's support for CLOB (and BLOB) columns using set{Ascii,Binary}Stream() generally s*cks. You'll have to read Oracle's own JDBC manual (you can read it online at http://technet.oracle.com) for whatever sequence they recommend.
E.g. for insertion and updation of CLOBS, you're supposed to use an oracle-specific function (EMPTY_CLOB()) as the value in the INSERT/UPDATE statement, and then do a SELECT, getClob(), and use Clob APIs to update the actual column value. At least officially. Or you have to use some Oracle-specific APIs in oracle.sql.Connection and oracle.sql.CLOB.