Inserting a New Row Using a ResultSet - Java JDBC

Java examples for JDBC:ResultSet

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Description

Inserting a New Row Using a ResultSet

Demo Code

import static java.sql.ResultSet.CONCUR_UPDATABLE;
import static java.sql.ResultSet.TYPE_FORWARD_ONLY;

import java.sql.Connection;
import java.sql.Driver;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;

public class Main {
  public static void main(String[] args) {
    Connection conn = null;/*from www . j  a  va2s.c om*/
    try {
      conn = JDBCUtil.getConnection();
      addRow(conn);
      JDBCUtil.commit(conn);
    } catch (SQLException e) {
      System.out.println(e.getMessage());
      JDBCUtil.rollback(conn);
    } finally {
      JDBCUtil.closeConnection(conn);
    }
  }

  public static void addRow(Connection conn) throws SQLException {
    String SQL = "select person_id, first_name, "
        + "last_name, gender, dob, income  " + "from person";

    Statement stmt = null;
    try {
      stmt = conn.createStatement(TYPE_FORWARD_ONLY, CONCUR_UPDATABLE);
      ResultSet rs = stmt.executeQuery(SQL);
      int concurrency = rs.getConcurrency();
      if (concurrency != ResultSet.CONCUR_UPDATABLE) {
        System.out.println("The JDBC driver does not "
            + "support updatable result sets.");
        return;
      }
      rs.moveToInsertRow();
      rs.updateInt("person_id", 501);
      rs.updateString("first_name", "Richard");
      rs.updateString("last_name", "Castillo");
      rs.updateString("gender", "M");
      rs.insertRow();
      rs.moveToCurrentRow();
      while (rs.next()) {
        System.out.print("Person ID: " + rs.getInt("person_id")
            + ", First Name: " + rs.getString("first_name") + ", Last Name: "
            + rs.getString("last_name"));
        System.out.println();
      }
    } finally {
      JDBCUtil.closeStatement(stmt);
    }
  }
}

class JDBCUtil {
  public static Connection getConnection() throws SQLException {
    Driver derbyEmbeddedDriver = null;// new
                                      // org.apache.derby.jdbc.EmbeddedDriver();
    DriverManager.registerDriver(derbyEmbeddedDriver);
    String dbURL = "jdbc:derby:beginningJavaDB;create=true;";
    String userId = "root";
    String password = "password";
    Connection conn = DriverManager.getConnection(dbURL, userId, password);
    conn.setAutoCommit(false);
    return conn;
  }

  public static void closeConnection(Connection conn) {
    try {
      if (conn != null) {
        conn.close();
      }
    } catch (SQLException e) {
      e.printStackTrace();
    }
  }

  public static void closeStatement(Statement stmt) {
    try {
      if (stmt != null) {
        stmt.close();
      }
    } catch (SQLException e) {
      e.printStackTrace();
    }
  }

  public static void closeResultSet(ResultSet rs) {
    try {
      if (rs != null) {
        rs.close();
      }
    } catch (SQLException e) {
      e.printStackTrace();
    }
  }

  public static void commit(Connection conn) {
    try {
      if (conn != null) {
        conn.commit();
      }
    } catch (SQLException e) {
      e.printStackTrace();
    }
  }

  public static void rollback(Connection conn) {
    try {
      if (conn != null) {
        conn.rollback();
      }
    } catch (SQLException e) {
      e.printStackTrace();
    }
  }

  public static void main(String[] args) {
    Connection conn = null;
    try {
      conn = getConnection();
      System.out.println("Connetced to the database.");
    } catch (SQLException e) {
      e.printStackTrace();
    } finally {
      closeConnection(conn);
    }
  }
}

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