How to get nested table meta data

Question

how to get nested table column name, column type and column size
by using java. i need code for this.
please help me.

Answer 1

The Follopwing program does display the the details of table. Hope you get the solution
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.ResultSetMetaData;
import java.sql.Statement;
public class Main {
  public static void main(String[] args) throws Exception {
    Connection conn = getOracleConnection();
    System.out.println("Got Connection.");
    Statement st = conn.createStatement();
    st = conn.createStatement();
    ResultSet rs = st.executeQuery("SELECT * FROM SCHEDULE_SET");
    ResultSetMetaData rsMetaData = rs.getMetaData();
    int numberOfColumns = rsMetaData.getColumnCount();
    System.out.println("resultSet MetaData column Count=" + numberOfColumns);
    for (int i = 1; i <= numberOfColumns; i++) {
      System.out.println("column MetaData ");
      System.out.println("column number " + i);
      // indicates the designated column's normal maximum width in
      // characters
      System.out.println(rsMetaData.getColumnDisplaySize(i));
      // gets the designated column's suggested title
      // for use in printouts and displays.
      System.out.println(rsMetaData.getColumnLabel(i));
      // get the designated column's name.
      System.out.println(rsMetaData.getColumnName(i));
      // get the designated column's SQL type.
      System.out.println(rsMetaData.getColumnType(i));
      // get the designated column's SQL type name.
      System.out.println(rsMetaData.getColumnTypeName(i));
      // get the designated column's class name.
      System.out.println(rsMetaData.getColumnClassName(i));
      // get the designated column's table name.
      System.out.println(rsMetaData.getTableName(i));
      // get the designated column's number of decimal digits.
      System.out.println(rsMetaData.getPrecision(i));
      // gets the designated column's number of
      // digits to right of the decimal point.
      System.out.println(rsMetaData.getScale(i));
      // indicates whether the designated column is
      // automatically numbered, thus read-only.
      System.out.println(rsMetaData.isAutoIncrement(i));
      // indicates whether the designated column is a cash value.
      System.out.println(rsMetaData.isCurrency(i));
      // indicates whether a write on the designated
      // column will succeed.
      System.out.println(rsMetaData.isWritable(i));
      // indicates whether a write on the designated
      // column will definitely succeed.
      System.out.println(rsMetaData.isDefinitelyWritable(i));
      // indicates the nullability of values
      // in the designated column.
      System.out.println(rsMetaData.isNullable(i));
      // Indicates whether the designated column
      // is definitely not writable.
      System.out.println(rsMetaData.isReadOnly(i));
      // Indicates whether a column's case matters
      // in the designated column.
      System.out.println(rsMetaData.isCaseSensitive(i));
      // Indicates whether a column's case matters
      // in the designated column.
      System.out.println(rsMetaData.isSearchable(i));
      // indicates whether values in the designated
      // column are signed numbers.
      System.out.println(rsMetaData.isSigned(i));
      // Gets the designated column's table's catalog name.
      System.out.println(rsMetaData.getCatalogName(i));
      // Gets the designated column's table's schema name.
      System.out.println(rsMetaData.getSchemaName(i));
    st.close();
    conn.close();
  public static Connection getOracleConnection() throws Exception {
    String driver = "oracle.jdbc.driver.OracleDriver";
    String url = "jdbc:oracle:thin:@son15644:1521:CXPqa1";
    String username = "ess4qa2";
    String password = "ess4qa2pw";
    Class.forName(driver); // load Oracle driver
    Connection conn = DriverManager.getConnection(url, username, password);
    return conn;
}