类型＆＃39; Oracle.DataAccess.Client.OracleException＆＃39;的未处理异常发生在Oracle.DataAccess.dll中

Question

我的代码存在严重问题，当我尝试从表格（对应）中检索ID（数字）时，总会抛出异常

<div class="container">
    <div class="row">
        <div class="col-sm-6">
            <div class="form-group">
                <div class="input-group date" id="datetimepicker3" data-target-input="nearest">
                    <input type="text" class="form-control datetimepicker-input" data-target="#datetimepicker3"/>
                    <div class="input-group-append" data-target="#datetimepicker3" data-toggle="datetimepicker">
                        <div class="input-group-text"><i class="fa fa-clock-o"></i></div>
                    </div>
                </div>
            </div>
        </div>
        <script type="text/javascript">
            $(function () {
                $('#datetimepicker3').datetimepicker({
                    format: 'LT'
                });
            });
        </script>
    </div>
</div>