ArcEngine 将sde的要素类数据导入到另外一个sde,用哪个接口可以实现？

之前用的IFeatureDataConverter，可实现将shp文件，gdb的文件导入到sde，现在要还是用IFeatureDataConverter这个接口，将一个sde的数据（数据集，要素类）导入到另一个sde，但是出现了错误：System.Runtime.InteropServices.COMException(0x80040203):该实现不支持此操作。 [不允许跨数据库边界执行 DDL 操作。]


 
代码如下
 

public class ClsImportClass

    {

        public static void ConvertFeatureClass2FeatureDataset(IWorkspace sourceWorkspace,IWorkspace targetWorkspace,IFeatureDatasetName targetFDN,string nameOfSourceFeatureClass,string nameOfTargetFeatureClass)

        {

            //创建源工作空间名

            IDataset sourceWorkspaceDataset = (IDataset)sourceWorkspace;

            IWorkspaceName sourceWorkspaceName = sourceWorkspaceDataset.FullName as IWorkspaceName;



            //创建源数据集名称

            IFeatureClassName sourceFeatureClassName = new FeatureClassNameClass();

            IDatasetName sourceDatasetName = sourceFeatureClassName as IDatasetName;

            sourceDatasetName.WorkspaceName = sourceWorkspaceName;

            sourceDatasetName.Name = nameOfSourceFeatureClass;



            //创建目标工作空间名称

            IDataset targetWorkspaceDataset = (IDataset)targetWorkspace;

            IWorkspaceName targetWorkspaceName = targetWorkspaceDataset.FullName as IWorkspaceName;



            //创建目标数据集名称

            IFeatureClassName targetFeatureClassName = new FeatureClassNameClass();

            IDatasetName targetDatasetName = targetFeatureClassName as IDatasetName;

            targetDatasetName.WorkspaceName = targetWorkspaceName;

            targetDatasetName.Name = nameOfTargetFeatureClass;



            //打开输入要素类获取字段定义

            IName sourceName = sourceFeatureClassName as IName;

            IFeatureClass sourceFeatureClass = sourceName.Open() as IFeatureClass;



            //验证字段

            IFieldChecker fieldChecker = new FieldCheckerClass();

            IFields targetFeatureClassFields;

            IFields sourceFeatureClassFields = sourceFeatureClass.Fields;

            IEnumFieldError enumFieldError;



            //设置输入和有效的工作空间

            fieldChecker.InputWorkspace = sourceWorkspace;

            fieldChecker.ValidateWorkspace = targetWorkspace;

            fieldChecker.Validate(sourceFeatureClassFields, out enumFieldError,out targetFeatureClassFields);



            //获取几何字段

            IField geometryField;

            for(int i = 0; i < targetFeatureClassFields.FieldCount; i++)

            {

                if (targetFeatureClassFields.get_Field(i).Type == esriFieldType.esriFieldTypeGeometry)

                {

                    geometryField = targetFeatureClassFields.get_Field(i);

                    IGeometryDef geometryDef = geometryField.GeometryDef;



                    IGeometryDefEdit targetFCGeoDefEdit = geometryDef as IGeometryDefEdit;

                    targetFCGeoDefEdit.GridCount_2 = 1;

                    targetFCGeoDefEdit.set_GridSize(0, 0);

                    targetFCGeoDefEdit.SpatialReference_2 = geometryField.GeometryDef.SpatialReference;



                    //转换所有要素

                    IQueryFilter queryFilter = new QueryFilterClass();

                    queryFilter.WhereClause = "";



                    //加载要素类

                    IFeatureDataConverter fctofc = new FeatureDataConverterClass();

                    IEnumInvalidObject  enumErrors = fctofc.ConvertFeatureClass(sourceFeatureClassName, queryFilter, targetFDN, targetFeatureClassName, geometryDef, targetFeatureClassFields, "", 1000, 0);

                                     

                    break;

                }

            }



        }

    }

看这异常的意思是IFeatureDataConverter不支持sde间数据的导入，请教用哪个接口可以实现sde间数据的导入操作呢？