13 October, 2020
In this topic, you use the Oracle BI Administration Tool to build the Physical layer of a repository.
The Physical layer defines the data sources to which Oracle BI Server submits queries and the relationships between physical databases and other data sources that are used to process multiple data source queries. The recommended way to populate the Physical layer is by importing metadata from databases and other data sources. The data sources can be of the same or different varieties. You can import sachems or portions of schema from existing data sources. Additionally, you can create objects in the Physical layer manually.
When you import metadata, many of the properties of the data sources are configured automatically based on the information gathered during the import process. After import, you can also define other attributes of the physical data sources, such as join relationships, that might not exist in the data source metadata. There can be one or more data sources in the Physical layer, including databases, flat files, XML documents, and so forth. In this example, you import and configure tables from the BISAMPLE schema included with the Oracle BI 11g Sample Application.
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To build the Physical layer of a repository, you perform the following steps:
Create a New Repository
Create Keys and Joins
2. Select File > New Repository.
3. Enter a name for the repository. In this tutorial the repository name is BISAMPLE.
4. Leave the default location as is. It points to the default repository directory.
5. Leave Import Metadata set to Yes.
6. Enter and retype a password for the repository. In this tutorial BISAMPLE1 is the repository
7 . Click Next. Import Metadata 1. Change the Connection Type to OCI 10g/11g. The screen displays connection fields based on the connection type you selected.
2 . Enter a data source name. In this example the data source name is orcl. This name is the same as the tnsnames.ora entry for this Oracle database instance.
3 . Enter a user name and password for the data source. In this example, the username and password are both BISAMPLE. Recall that BISAMPLE is the name of the user/schema you created in the prerequisite section.
4 . Click Next.
5. Accept the default metadata types and click Next.
6 . In the Data source view, expand the BISAMPLE schema.
7 . Use Ctrl+Click to select the following tables: SAMP_ADDRESSES_D SAMP_CUSTOMERS_D SAMP_PRODUCTS_D SAMP_REVENUE_F SAMP_TIME_DAY_D
8 . Click the Import Selected button to add the tables to the Repository View.
9 . The Connection Pool dialog box appears. Accept the defaults and click OK.
10 . The Importing message appears.
11 . When the import is complete, expand BISAMPLE in the Repository View and verify that the five tables are visible.
12 . Click Finish to open the repository.
13 . Expand orcl > BISAMPLE and confirm that the five tables are imported into the Physical layer of the repository.
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