Refresh a Row in an Updatable ResultSet : ResultSet Updatable « Database « Java Tutorial






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

public class Main {
  public static void main(String[] args) throws Exception {
    Connection conn = getConnection();
    Statement st = conn
        .createStatement(ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_UPDATABLE);

    st.executeUpdate("create table survey (id int,name varchar(30));");
    st.executeUpdate("insert into survey (id,name ) values (1,'nameValue')");
    st.executeUpdate("insert into survey (id,name ) values (2,null)");
    st.executeUpdate("insert into survey (id,name ) values (3,'Tom')");

    ResultSet rs = st.executeQuery("SELECT id,name FROM survey");

    // Use the result set

    // Retrieve the current values of the row from the database
    rs.refreshRow();


    rs.close();
    st.close();
    conn.close();
  }

  private static Connection getConnection() throws Exception {
    Class.forName("org.hsqldb.jdbcDriver");
    String url = "jdbc:hsqldb:mem:data/tutorial";

    return DriverManager.getConnection(url, "sa", "");
  }
}








20.12.ResultSet Updatable
20.12.1.Determine if a Database Supports Updatable ResultSets
20.12.2.Create an Updatable ResultSet
20.12.3.Determine if a ResultSet is Updatable
20.12.4.Update a Row in a Database Table Using an Updatable Result Set
20.12.5.Cancel Updates to an Updatable ResultSet
20.12.6.Insert a Row into a Database Table Using an Updatable ResultSet
20.12.7.Delete a Row from a Database Table Using an Updatable ResultSet
20.12.8.Refresh a Row in an Updatable ResultSet
20.12.9.Cancelling Updates to an Updatable Result Set