| Database Connections |
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Connections store authentication information. For general information about sharing database connections, please see Using Database Connections. Note that different subsets of Database Connection parameters are made available in different contexts.  Connection
Select an existing connection, or Add Database Connection to define a new connection. The new connection can be made visible only to the current user, or can be shared among multiple users. |
Database Connection
Connection File
This parameter identifies the pathname of a connection file to be used to connect to an Enterprise Geodatabase.
A connection file provides the necessary information to connect to the SDE server, such as the server name or the username.
The connection file must be a *.sde file and have the proper format for a connection file as defined by Esri. Connection files can be created in ArcCatalog.
Override Credentials
Check this option to override the User and Password from the connection file. Overriding credentials is required for Connection Files that do not have saved credentials.
Note: This parameter is ignored if the Connection File is using OS Authentication.
Username and Password
Enter the username and password to access the database, user account, or wherever authentication is required.
Constraints
Table List
After you have specified the database connection, click the Browse button to select tables for import. A connection window appears while the system compiles a table from the database.
Once the table list appears, you can select one or more tables, and then click OK to dismiss the window. The table name(s) will appear in the Table List field in the parameter box.
WHERE Clause
An SQL WHERE clause can be applied to the selected tables, to constrain the the row selection in tables chosen in the table list (for example, NUMLANES=2).
Alias Mode
This parameter controls how Geodatabase aliases are used.
- None: Aliases are ignored.
- Replace Attribute Names with Aliases: (Only applicable when adding a Reader.) Attributes on feature types will be named for their aliases rather than their official names. A geodb_feature_class_alias attribute will be included on each feature. Use this mode when the target format should create feature types using the aliases as attribute names.
- Expose Aliases as Metadata Attributes: For each attribute read, a second <name>_alias attribute will be added that stores the alias for the attribute in question. A geodb_feature_class_alias attribute will also be included on each feature. Use this mode when the target format is Geodatabase and the aliases should be preserved during feature class and table creation.
Schema Attributes
Additional Attributes to Expose
Use this parameter to expose Format Attributes in Workbench when you create a workspace:
- In a dynamic scenario, it means these attributes can be passed to the output dataset at runtime.
- In a non-dynamic scenario where you have multiple feature types, it is convenient to expose additional attributes using this one parameter. For example, if you have ten feature types and want to expose the same attribute in each one, it is easier to define it once than it is to set each feature type individually in the workspace.
Use Search Envelope
Using the minimum and maximum x and y parameters, define a bounding box that will be used to filter the input features. Only features that intersect with the bounding box are returned.
If all four coordinates of the search envelope are specified as 0, the search envelope will be disabled.
Clip to Search Envelope
When selected, this parameter removes any portions of imported features being read that are outside the Search Envelope.
The example below illustrates the results of the Search Envelope when Clip to Search Envelope is not selected (set to No) and when it is selected (set to Yes).
- No: Any features that cross the search envelope boundary will be read, including the portion that lies outside of the boundary.
- Yes: Any features that cross the search envelope boundary will be clipped at the boundary, and only the portion that lies inside the boundary will be read. The underlying function for the Clip to Search Envelope function is an intersection; however, when Clip to Search Envelope is selected, a clipping operation is also performed in addition to the intersection.
