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Aliases are alternative names given to fields in a dataset that are often more descriptive than the actual field name.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.
Alias Mode controls how Geodatabase aliases are used.
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,Address and Website URL of the various 亚搏国际在线官网community centres located in the city of Vancouver.By examining the properties of this feature class,one can see that field aliases are present in the data.
1.Read Source Data - (ESRI Geodatabase - File Geodb)
亚搏国际在线官网Community Centre feature geometry and attributes are read from the Geodatabase feature class source file using the ESRI Geodatabase (File Geodb) reader,providing the features,attributes,and alias definitions for the destination Geodatabase feature class.When adding the source feature class data,click on the reader parameters button in order to select the 亚搏国际在线官网Community Centre table from the Table List parameter and set Alias Mode to the "Expose Aliases as Metadata Attributes" option.
通过揭露别名为元数据,一个
2.Alter Alias Values
The AttributeManager is used to access the
It is of note that this step could alternatively be accomplished using the AttributeCreator.
3.Write Alias Values to Destination Geodatabase
Add the ESRI Geodatabase (File Geodb) writer and specify the output Geodatabase to which the data will be written (i.e.VancouverCity).Once added,connect the output of the AttributeManager to the Geodatabase writer.As an optional step,if you wish to write the 亚搏国际在线官网Community Centres data to a feature dataset,double-click on the Geodatabase writer and,under Format Parameters,type "亚搏国际在线官网Community" in the Feature Dataset area.Save and run the workspace.
* The ESRI Geodatabase (File Geodb
) reader/writer used in the above example requires that a licensed version of ArcGIS be available to the user.For more information on required ArcGIS license levels,please seeRequired ArcGIS License Types for FME Geodatabase Formats.
FME is able to create attribute aliases for features read into the workspace that do not have aliases.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 namedCentreAddressand there is another attribute namedCentreAddress_aliaswith a value ofAddress.The value ofCentreAddresss_aliaswill be used as the alias ofCentreAddress(alias:Address).This only needs to occur on the first feature.
Writing ArcGIS Geodatabase Attachments
Viewing and Inspecting Geodatabases
Introduction to Working with Geodatabase Relationship Classes
Tutorial: Getting Started with Geodatabase
Writing Geodatabase Relationship Classes
Working with Geodatabase Metadata: Writing/Updating Metadata
Geodatabase Behaviour: Updating a File Geodatabase
Using the FeatureReader to Query a Geodatabase
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