Get Number Of Rows in a Scrollable ResultSet from MySQL : ResultSet Scrollable « Database SQL JDBC « Java





Get Number Of Rows in a Scrollable ResultSet from MySQL

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

public class GetNumberOfRowsScrollableResultSet_MySQL {

  public static Connection getConnection() throws Exception {
    String driver = "org.gjt.mm.mysql.Driver";
    String url = "jdbc:mysql://localhost/databaseName";
    String username = "root";
    String password = "root";
    Class.forName(driver);
    Connection conn = DriverManager.getConnection(url, username, password);
    return conn;
  }

  public static void main(String[] args) {
    Connection conn = null;
    Statement stmt = null;
    ResultSet rs = null;
    try {
      conn = getConnection();
      String query = "select id from employees";
      stmt = conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_READ_ONLY);

      rs = stmt.executeQuery(query);
      // extract data from the ResultSet scroll from top
      while (rs.next()) {
        String id = rs.getString(1);
        System.out.println("id=" + id);
      }
      // move to the end of the result set
      rs.last();
      // get the row number of the last row which is also the row count
      int rowCount = rs.getRow();
      System.out.println("rowCount=" + rowCount);
    } catch (Exception e) {
      e.printStackTrace();
    } finally {
      try {
        rs.close();
        stmt.close();
        conn.close();
      } catch (SQLException e) {
        e.printStackTrace();
      }
    }
  }
}
           
         
  










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