File to BLOB

Question

Hi everybody.
I'm newbie with Java. How to put file to BLOB field?

Answer 1

I have read section "Populating a BLOB or CLOB Column in a New Table" from Oracle9i JDBC Developer's Guide and Reference. But i did'n found any answer how to put external file to BLOB field into the table.
What is wrong in my code?
public static void file2blob(String fileName, String tableName, String fieldName,
oracle.sql.ROWID rowid, int compress) throws FileNotFoundException,
IOException, SQLException
String sql_in = "SELECT " + fieldName + " FROM " + tableName + " WHERE ROWID = ? FOR UPDATE";
String sql_out = "UPDATE " + tableName + " SET " + fieldName + " = ? WHERE ROWID = ?";
DriverManager.registerDriver(new oracle.jdbc.driver.OracleDriver());
Connection conn = DriverManager.getConnection("jdbc:oracle:thin:@server:1521:test", "system", "manager");
OraclePreparedStatement stm_in = (OraclePreparedStatement)conn.prepareStatement(sql_in);
OraclePreparedStatement stm_out = (OraclePreparedStatement)conn.prepareStatement(sql_out);
stm_in.setROWID(1, rowid);
OracleResultSet rs_in = (OracleResultSet)stm_in.executeQuery();
// I getting here ORA-01002 fetch out of sequence!
if (rs_in.next())
BLOB blob = rs_in.getBLOB(1);
OutputStream blobStream = blob.getBinaryOutputStream();
FileInputStream fileStream = new FileInputStream(fileName);
byte[] buffer = new byte[1024];
int numRead;
while ((numRead = fileStream.read(buffer)) != -1)
blobStream.write(buffer, 0, numRead);
fileStream.close();
stm_out.setBLOB(1, blob);
stm_out.setROWID(2, rowid);
stm_out.execute();
stm_out.close();
rs_in.close();
stm_in.close();