static String buildInsertSql(String table, String[] fields) {    // TODO:    var sb =new StringBuilder(1024);    sb.append("INSERT INTO ")            .append(table)            .append(" (");    for(int i=0;i<=fields.length-1;i++){        sb.append(fields[i])          .append(",");    }    sb.delete(sb.length()-1,sb.length());    sb.append(") VALUES (?,?,?)");    return sb.toString();}