private final String custNoInsQuery=
            "select count(distinct tbc.id) "
            + "from Tb_Customer tbc "
            + "join Tb_Insurance tbi on tbi.customerId = tbc.id "
            + "join Tb_Model tbm on tbi.modelId = tbm.id "
            + "where tbm.model=:model "
            + "and :date not between tbi.dateFrom and tbi.dateTo ;";
    private final String allCustQuery=
            "select count(c.id) "
            + "from Tb_Customer c;";