Question

我正在以编程方式创建聚合转换，其聚合类型为不同的计数，并且我能够创建其他聚合，如最小，最大，计数..但是当涉及到不同的计数时，我的错误率将低于误差

该组件在检测到潜在的元数据损坏验证。数据流任务时发生错误-负载计数距离[总计- 全部[2]]：“汇总-全部。输出[汇总输出 1] .Columns [col1]“缺少必需的属性 “ CountDistinctScale”。该对象必须具有指定的自定义属性。

我无法找到“ CountDistinctScale”自定义属性，因为该自定义属性不会退出以进行其他聚合，并且在选择计数不同时会神奇地出现，是否需要调用一种方法来创建新的自定义属性？

我了解没有多少人知道如何以编程方式创建软件包，请帮助我找到有知识的人或向我建议如何获得帮助。

IDTSComponentMetaData100 Aggregate = pipeline.ComponentMetaDataCollection.New();
            Aggregate.ComponentClassID = app.PipelineComponentInfos["Aggregate"].CreationName;
            // Get the design time instance of the derived column
            var DesignAggregate = Aggregate.Instantiate();
            DesignAggregate.ProvideComponentProperties();        //design time

            Aggregate.Name = "AggregateComponent";               

            IDTSPath100 AggregatePath = pipeline.PathCollection.New();
            AggregatePath.AttachPathAndPropagateNotifications(pipeline.ComponentMetaDataCollection[Prev_Transform.Transformation_Name].OutputCollection[Prev_Transform.Output_Number], Aggregate.InputCollection[0]);


            //update the metadata for the derived columns
            DesignAggregate.AcquireConnections(null);
            DesignAggregate.ReinitializeMetaData();
            DesignAggregate.ReleaseConnections();


            // Mark the columns we are joining on
            IDTSInput100 AggregateInput = Aggregate.InputCollection[0];
            IDTSInputColumnCollection100 AggregateInputColumns = AggregateInput.InputColumnCollection;
            IDTSVirtualInput100 AggregateVirtualInput = AggregateInput.GetVirtualInput();
            IDTSVirtualInputColumnCollection100 AggregateVirtualInputColumns = AggregateVirtualInput.VirtualInputColumnCollection;

            IDTSOutput100 AggregateoutputCollection = Aggregate.OutputCollection[0];

            // Note: input columns should be marked as READONLY
            foreach (IDTSVirtualInputColumn100 vColumn in AggregateVirtualInputColumns)
            {
                int sourceColumnLineageId = AggregateVirtualInput.VirtualInputColumnCollection[vColumn.Name].LineageID;
                DesignAggregate.SetUsageType(AggregateInput.ID, AggregateVirtualInput, sourceColumnLineageId, DTSUsageType.UT_READONLY);

                // create a new output column
                IDTSOutputColumn100 newOutputColumn = DesignAggregate.InsertOutputColumnAt(AggregateoutputCollection.ID, 0,  vColumn.Name, string.Empty);

                // set the data type porperties to the same values as these of the input column   
                newOutputColumn.SetDataTypeProperties(AggregateVirtualInput.VirtualInputColumnCollection[vColumn.Name].DataType, AggregateVirtualInput.VirtualInputColumnCollection[vColumn.Name].Length, 0, 0, AggregateVirtualInput.VirtualInputColumnCollection[vColumn.Name].CodePage);

                newOutputColumn.MappedColumnID = 0;
                for (int i = 0; i < newOutputColumn.CustomPropertyCollection.Count; i++)
                {
                    IDTSCustomProperty100 property = newOutputColumn.CustomPropertyCollection[i];
                    switch (property.Name)
                    {
                        case "AggregationColumnId":
                            property.Value = sourceColumnLineageId;
                            break;
                        case "AggregationType":
                            property.Value = 3;
                            break;
                        case "IsBig":
                            property.Value = 1;
                            break;
                        case "AggregationComparisonFlags":
                            property.Value = 0;
                            break;
                    }
                }

            }

以编程方式向SSIS包中添加“聚合变换-计数不同”

0 个答案: