Add SQL command into Statement as batch in Java

 /* ww  w .  ja va 2s  .  c o m*/


import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
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 = getConnection();
    conn.setAutoCommit(false);
    Statement st = conn .createStatement();
    
    
    st.executeUpdate("create table survey (id int, name VARCHAR(30) );");
    st.addBatch("DELETE FROM survey");

    st.addBatch("INSERT INTO survey(id, name) "+
                  "VALUES(444, 'ginger')");
    // we intentionally pass a table name (animals_tableZZ)
    // that does not exist
    st.addBatch("INSERT INTO survey(id, name) "+
                  "VALUES(555, 'lola')");
    st.addBatch("INSERT INTO survey(id, name) "+
                  "VALUES(666, 'freddy')");

    // Execute the batch
    int[] updateCounts = st.executeBatch();
    
    checkUpdateCounts(updateCounts);

    // since there were no errors, commit
    conn.commit();
    
    ResultSet rs = st.executeQuery("SELECT * FROM survey");
    outputResultSet(rs);

    
    rs.close();
    st.close();
    conn.close();
  }
  public static void checkUpdateCounts(int[] updateCounts) {
    for (int i=0; i<updateCounts.length; i++) {
        if (updateCounts[i] >= 0) {
            System.out.println("OK; updateCount="+updateCounts[i]);
        }
        else if (updateCounts[i] == Statement.SUCCESS_NO_INFO) {
            System.out.println("OK; updateCount=Statement.SUCCESS_NO_INFO");
        }
        else if (updateCounts[i] == Statement.EXECUTE_FAILED) {
            System.out.println("Failure; updateCount=Statement.EXECUTE_FAILED");
        }
    }
}  
  
  private static void outputResultSet(ResultSet rs) throws Exception {
    ResultSetMetaData rsMetaData = rs.getMetaData();
    int numberOfColumns = rsMetaData.getColumnCount();
    for (int i = 1; i < numberOfColumns + 1; i++) {
      String columnName = rsMetaData.getColumnName(i);
      System.out.print(columnName + "   ");

    }
    System.out.println();
    System.out.println("----------------------");

    while (rs.next()) {
      for (int i = 1; i < numberOfColumns + 1; i++) {
        System.out.print(rs.getString(i) + "   ");
      }
      System.out.println();
    }

  }

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

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