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别名是赋予数据集中字段的可选名称,通常比实际字段名更具描述性。Most users of FME who work with a Geodatabase will want to be able to create or maintain field aliases within their datasets.When adding a File Geodatabase to a workspace,alias control can be found under Schema Attributes > Alias Mode.
别名模式控制如何使用地理数据库别名。
亚搏国际在线官网Community Centres (ESRI File Geodatabase Feature Class)
In the above image,we see a visualization of the 亚搏国际在线官网Community Centres feature class and its accompanying attributes containing values for Name,温哥华市各社区中心的地址和网址。亚搏国际在线官网By examining the properties of this feature class,one can see that field aliases are present in the data.
1。读取源数据-(esri geodatabase-file geodb)
亚搏国际在线官网使用ESRI地理数据库(文件geodb)读卡器从地理数据库要素类源文件中读取社区中心要素几何图形和属性。提供功能,attributes,and alias definitions for the destination Geodatabase feature class.添加源要素类数据时,单击读卡器参数按钮,从表列表参数中选择社区中心表,并将别名模式设置为“将别名公开为元数据属性”选项。亚搏国际在线官网
By exposing the aliases as metadata,a
2.更改别名值
attributeManager用于访问
It is of note that this step could alternatively be accomplished using the AttributeCreator.
三。将别名值写入目标地理数据库
Add the ESRI Geodatabase (File Geodb) writer and specify the output Geodatabase to which the data will be written (i.e.VancouverCity).Once added,将属性管理器的输出连接到地理数据库编写器。As an optional step,如果您希望将社区中心数据写入功能数据集,亚搏国际在线官网双击geodatabase writer,在“格式参数”下,在功能数据集亚搏国际在线官网区域中键入“community”。Save and run the workspace.
* The ESRI Geodatabase (File Geodb
)上述示例中使用的读写器要求用户可以使用授权版本的Arcgis。For more information on required ArcGIS license levels,请看Required ArcGIS License Types for FME Geodatabase Formats.
FME能够为读取到工作区中没有别名的功能创建属性别名。This is possible if there is an additional attribute with the same name as the original attribute and is suffixed with "_alias".The value of that attribute will be used as the alias on table creation.
For example: there is an attribute namedCentreAddress还有一个属性名为CentreAddress_aliaswith a value of地址。价值中心地址\别名will be used as the alias ofCentreAddress(alias:Address)This only needs to occur on the first feature.
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