static String buildInsertSql(String table, String[] fields){    StringBuilder sb = new StringBuilder(1024);    sb.append("INSERT INTO ");    sb.append(table);    sb.append(" (");    for (String field: fields){        sb.append(field);        sb.append(", ");    }    sb.delete(sb.length() - 2, sb.length());    sb.append(")");    sb.append(" VALUES (?, ?, ?)");    String s = sb.toString();    return s;}