SAS Data Integration Studio 3.3- P29 doc

Registering Data Sources Define the Columns for the External File Metadata 135 sample data that is processed by the guessing function. The results are accurate for this particular set of records, but you should still examine them to make sure that they are representative for employee dependent account records in general. The following display shows the completed Column Definitions window. Display 8.14 Corrected Column Metadata 8 To verify that the metadata you have entered is appropriate for the data in the external file, click the Data tab and then click Refresh. If the metadata matches the data, the data displays properly on the Data tab. If the data does not display properly, update the column metadata and click Refresh to verify that the appropriate updates have been made. To view the code that will be generated for the external file, click the Source tab. To view the SAS log for the generated code, click the Log tab. The code that displays on the Source tab is the code that is generated for the current external file when it is included in a SAS Data Integration Studio job. 136 Define the Columns for the External File Metadata Chapter 8 9 Click Next. The Select Group window displays. Display 8.15 Select Group Window For this example, assume that you do not want to specify a Custom Tree group for the table. Select Foundation and click Next. The General window displays. You have the option to enter a name and description for the external file metadata, as shown in the following display. Display 8.16 General Window Registering Data Sources View the External File Metadata 137 If you leave the Name field blank, the file is identified by its path. 10 Click Finish to save the metadata and exit the wizard. View the External File Metadata After you have generated the metadata for an external file, you can use SAS Data Integration Studio to view (and possibly make changes to) that metadata. For example, you might want to remove a column from a table or change the data type of a column. Any changes that you make to this metadata will not affect the physical data in the external file. However, the changes will affect the data that is surfaced when the external table is used in SAS Data Integration Studio. Follow these steps to view or update external file metadata: 1 In the Project tree, right-click the icon for the Employee Account Data file and select Properties from the pop-up menu. Then, select the Columns tab. The Employee Account Data Properties window displays, as shown in the following display. Display 8.17 Employee Account Data Properties Window 2 Use the tabs in this window to view or update the external file metadata. (Each tab has its own Help button.) 3 Click OK to save any changes and close the properties window. 138 View the Data in the External File Chapter 8 View the Data in the External File To view the data in the Employee Account Data external file, right-click on its metadata object in the Project tree. Then select View Data from the pop-up menu. The Employee Account Data external file displays in the View Data window, as shown in the following display. Display 8.18 Data in the External File, As Specified in Metadata If the data in the Employee Account Data external file displays correctly, the metadata for the file is correct and the table is available for use in SAS Data Integration Studio. If you need to review the original data for the file, right-click on its metadata object in the Project tree. Then select View File from the pop-up menu. At this point, you could add the metadata that you just created to a job, or you could check in the metadata. Check In the Metadata To check in the metadata object for an external file, follow these steps: 1 In the Project tree, select the repository icon. 2 From the SAS Data Integration Studio menu bar, select Project Check In. All objects in the project repository are checked into the change-managed repository. Next Tasks After you have specified the metadata for one or more sources, you can specify the metadata for the corresponding targets—the data stores that will contain the information that will be extracted and transformed from the sources. 139 CHAPTER 9 Registering Data Targets Targets: Outputs of SAS Data Integration Studio Jobs 139 Example: Using the Target Table Designer to Register SAS Tables 140 Preparation 140 Start SAS Data Integration Studio and Open a Metadata Profile 141 Select the Target Table Designer 141 Enter a Name and Description 142 Select Column Metadata from Existing Tables 142 Specify Column Metadata for the New Table 144 Specify Physical Storage Information for the New Table 145 Usage Hints for the Physical Storage Window 145 Specify a Custom Tree Group for the Current Metadata 146 Save Metadata for the Table 147 Check In the Metadata 147 Next Tasks 148 Targets: Outputs of SAS Data Integration Studio Jobs In general, a target is an output of an operation. In a SAS Data Integration Studio job, the main targets are data stores in a data warehouse, data mart, or another data collection. After you have specified the sources for a SAS Data Integration Studio job, you can specify the targets for that job. Your project plan should identify the targets that are required for a particular job. For example, the targets that are required to answer specific business questions in the Orion Star Sports & Outdoors project are listed under each business question. See the Identifying Targets section under each business question in Chapter 5, “Example Data Warehouse,” on page 43. Use the examples in this chapter, together with general methods that are described in “Registering Sources and Targets” on page 97, to specify metadata for the targets that will be used in a SAS Data Integration Studio job. . a SAS Data Integration Studio job, the main targets are data stores in a data warehouse, data mart, or another data collection. After you have specified the sources for a SAS Data Integration Studio. sources. 139 CHAPTER 9 Registering Data Targets Targets: Outputs of SAS Data Integration Studio Jobs 139 Example: Using the Target Table Designer to Register SAS Tables 140 Preparation 140 Start SAS Data. Specified in Metadata If the data in the Employee Account Data external file displays correctly, the metadata for the file is correct and the table is available for use in SAS Data Integration Studio. If