Need to insert into NVARCHAR2 column in a database table

Question

I need to insert into a table with column type NVARCHAR2(2000) in java.
Cant use normal setString on that column. How can I do this using PreparedStatement in Java?

Answer 1

The scenario is:
I have to read a CSV file which contains a column in Urdu language, and show it on the JTable first.
Then I have to import the JTable contents into a database table.
Database Table structure is:
CREATE TABLE IMPORT_TMP (
ctype          VARCHAR2(3),
urdu_name  NVARCHAR2(2000)
);My java code which inserts into the database table is:
                Vector dataVector = tableModel.getDataVector();
                rowVector = (Vector) dataVector.get(row);
              cType = "";
                if (rowVector.get(INDEX_BANK) != null) {
                    cType = rowVector.get(INDEX_CTYPE).toString();
                urduName = "";
                if (rowVector.get(INDEX_URDU_NAME) != null) {
                    urduName = rowVector.get(INDEX_URDU_NAME).toString();
                statementInsert.setString(1, cType);
                statementInsert.setString(2, urduName);I also applied Renderer on the table column, my renderer class is:
public class LangFontRenderer extends JLabel implements TableCellRenderer {
    private Font customFont;
    public LangFontRenderer(Font font) {
        super();
        customFont = font;
        System.out.println("font = " + font.getFontName());
        this.setFont(font);
    @Override
    public Component getTableCellRendererComponent(JTable table,
            Object value, boolean isSelected, boolean hasFocus, int row, int column) {
        if (value != null) {
            if (value instanceof String) {
                setText((String) value);
                return this;
        return this;
    @Override
    public Font getFont() {
        return customFont;
    // overriding other methods for performance reasons only
    @Override
    public void invalidate() {
    @Override
    public boolean isOpaque() {
        return true;
    @Override
    public void repaint() {
    @Override
    public void revalidate() {
    @Override
    public void validate() {
}I applied the renderer on the column as:
        TableColumn col = IATable.getColumnModel().getColumn(INDEX_URDU_NAME);
        LangFontRenderer langRenderer = new LangFontRenderer(new java.awt.Font("Urdu Naskh Asiatype", 0, 11));
        col.setCellRenderer(langRenderer);It does not give any error but when i query on the database table it does not show the column data in Urdu language.
Also it does not show the correct value on JTable column, some un-identified symbols.
Furthermore when I open the CSV file in notepad, it shows the correct language in that column, as I have installed the Urdu language and font on my system.