Note that the query conditions

public List<F_SEAFREIGHT> SeaFreightList(freight model)
{
using (IDbConnection conn = GetConnection(DBType.Forwarder))
{
string query = “select * from F_SEAFREIGHT where TIMESTART <=sysdate and TIMEEND >= sysdate”;
if (!string.IsNullOrEmpty(model.startPort))
{
query = query + " and LOADINGPORTCODE =:startPort";
}
if (!string.IsNullOrEmpty(model.endPort))
{
query = query + " and DESTINATIONPORT =:endPort";
}

            if (!string.IsNullOrEmpty(model.shipDateStart))
            {
                query = query + " and TRANSITDATE >=to_date('" + model.shipDateStart + "', 'yyyy-mm-dd')";
            }
            if (!string.IsNullOrEmpty(model.shipDateEnd))
            {
                query = query + " and TRANSITDATE <=to_date('" + model.shipDateEnd + "', 'yyyy-mm-dd')";
            }
            if (!(string.IsNullOrEmpty(model.shipNo) || model.shipNo == "不限"))
            {
                query = query + " and CARRIERCODE =:shipNo";
            }
            var freightList = conn.Query<F_SEAFREIGHT>(query, model).ToList();
            return freightList;
        }
    }