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4 Select Customer ID and click > Once you add an additional level in the hierarchy, notice that Designer automatically now includes Prompt Text for Country of Origin 5 Click Generate LOVs
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A Better Universe
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FIGURE 10-4
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Adding Country as a prompt in the Customer Id list of values involves four tables
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TIP Whenever you create a cascaded list of values, always check the Hierarchical view for
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a more intuitive list of values, described more fully in the later section Tabular vs Hierarchical Views
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If you go back and preview the Customer Id object, you will see that Designer has changed several settings If your cascade also included other levels within the hierarchy such as region and city, the list of value settings for those objects also will have been modified It s important to understand how the steps in the preceding section affect individual object settings, because if you ever wish to go back and change a cascade, you must do so manually, as described in this section Further, if you implement a cascade after you have implemented other customizations, the cascade will overwrite those other customizations Select the object Customer Id and double-click to bring up the Edit Properties box To manually modify the list of values for the Customer Id object: 1 Select the Properties tab 2 Select Edit to modify the CUSTIDLOV query and display the query panel 3 Notice the object Country of Origin in the Conditions box
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10:
L i s t o f Va l u e s
PART II
Adding a prompt here creates a cascade
4 Click OK to close the query panel 5 From the Object Properties dialog, click Display in the bottom right and then Refresh from the List Of Values dialog You will be prompted to choose a country before you can see the newly filtered set of customer IDs 6 You may either click Values to choose from a list of countries or enter France and click OK Notice how much smaller the list of Customer IDs is now compared to the list in Step 6 under the earlier heading Adding More Information
Part II:
A Better Universe
7 Select OK to close the list of values 8 Once you are satisfied with your customization, verify that the check box Export With Universe is enabled When you create a cascaded list of values through Tools | Lists Of Values | Creating Cascading Lists Of Values, this option is set for you 9 Click OK to close the Object Properties dialog
Tabular vs Hierarchical Views
There are two check boxes for Hierarchical view, and they have different behaviors in Web Intelligence and Desktop Intelligence Let s start with a simple recommendation
TIP Whenever you create a cascade, leave the option Hierarchical View enabled Whenever
you manually customize a list of values to either add a filter or add additional columns of information, choose the Object Properties Hierarchical Display as described in Table 10-1 For Web Intelligence users, the Hierarchical Display is most intuitive For Desktop Intelligence users, there is little impact
Hierarchical Display in Web Intelligence
When a Web Intelligence user refreshes a query that contains a cascaded list of values, the list of values is grouped according to the hierarchy of the higher-level prompts as shown in the following screen Users see only one prompt for Customer ID When the list of values is exported with Hierarchical Display enabled, the cascade or initial prompt on Countries is embedded within the list of values Users click the + to expand or collapse the individual countries
One prompt
Expand or collapse the hierarchy
10:
L i s t o f Va l u e s
Without Hierarchical Display enabled, the prompting and list of values are far less intuitive Compare the following screen with the former Notice that without the Hierarchical Display there are two filters in the top prompt box To see individual customer codes for any given country, users must first specify the value there and refresh the list of values for a country Then they must position their mouse on the customer ID prompt and refresh that list to get a subset of the list of customer IDs within France A similar workflow is followed with Desktop Intelligence reports that contain cascaded prompts
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