Creating Presentation Layer of SH Repository 
The main purpose of building the Presentation catalog in Presentation Layer is to provide the useful and necessary data from the end-users perspective i.e. different view of data for business measures are provide for different type of users.


Steps for making Presentation catalog in Presentation Layer are as follows:


1)In case you closed the rpd file, use the following steps to open the repository.


  a)Select Start >Programs > Oracle Business Intelligence > BI Administration. 
  b)Select File > Open > Offline. 
  c)Double-click SH.rpd to open the repository file. 
 d)Enter the following parameters: 
    User:           Administrator
    Password:   Administrator
 e)Click OK. 


2)Verify that the Presentation layer is visible. If it is not visible, select View > Presentation from the menu bar.




3)Make the DW Business model available for Queries. To do so, double click on the DW business model in the BMM layer > select the Checkbox for 




4)Drag the DW Business Model folder from the Business Model and Mapping Layer to the Presentation Layer. Thus the DW presentation catalog is created in Presentation Layer. 


5)Reordering the columns of DW presentation catalog.


    a) Expand the DW presentation catalog.




    b) Double click the Customers table and select the column tab.
    c) Change the order of columns using Up and Down buttons. Select the column and then click on Up or Down button. After rearranging it should appear as :



d) Click OK to close the window.


6)Similarly reorder the other columns by following the method described in step 4 in following order. 




7)Rename the columns of DW presentation catalog.


a) Expand the Products presentation table.
b) Double-click the Prod Name column, select the General tab in the Presentation Column dialog box and uncheck the Use Logical Column Name.
c) Change the column name by typing Product Name in the name field.
d) Click OK.


8) Repeat the process till all the column of Products presentation table get name as: 




Note: Alternatively you could rename these columns in the Business Model & Mapping layer (manually or using Rename wizard shown previously)


9)In order to meet end user’s requirement we have to hide/delete some columns from presentation Layer which are not used by users or are required in Business Model & Mapping layer. For this purpose you have to perform deletion of unnecessary columns:


          a)In the Channels presentation column, select the Channel Id and press    
            Delete key from keyboard.
         b) Click Yes to delete the object.
         c) Similarly delete the following columns from the presentation tables.
     


10)Verify the presentation tables for the changes you made.


11)Save the repository. Do not check global consistency.


Tip: 
Drag and drop the business model from the business model and mapping layer onto the presentation layer, this ensures faster creation of the presentation model.


Testing and Validating Repository Consistency Check  

Before testing the repository by running queries using Oracle BI Answers, you have to check the consistencies of repository and its business model.
Steps of checking repository are as follows:
1)If you haven’t open the Oracle BI Administration tool just open it by following steps. 
          a)Select Start > Programs > Oracle Business Intelligence > BI   
             Administration. 
          b)Select File > Open > Offline. 
          c)Double-click SH.rpd to open the repository file. 
         d)Enter the following parameters: 
             User: Administrator
             Password:   Administrator
         e)Click OK. 


2)Select File > Check Global Consistency (Shortcut – You can select the presentation catalog and press CTRL + K)


3)If any error appears in Consistency Check Manager, then edit the repository to correct the inconsistencies and rerun Check Global Consistency as in step 1. 




4)Consistency Check Manager can show three type of messages:


Error:
 These messages indicate that there has been some inconsistency in the model and need to be fixed before querieng. If you get these errors then go through the error description and fix it before proceeding.
Warning: 
These messages show some warning messages which may or may not cause any    errors.
Best Practices: 
These messages are displays information about the best practices, which can be followed.
     
5)On successfully and errorless appearance of Consistency Check Manager, click on Close. 


So, Finally we have built the RPD for SH schema and will learn how to create our first report using this presentation catalog and How to add that report into the Dashboard.


Keep Rocking!!!

Building the Business Model & Mapping Layer                                                             




A. Follow the instructions in case you closed the admin tool or else go to point 
1)  In order to define logical table structure in DW Business Model, you will 
     use Oracle BI Administration tool.
      a)  Select Start > Programs > Oracle Business Intelligence > BI   
          Administration. 
      b) Select File > Open > Offline.
      c) Double-click SH.rpd to open the repository file.
      d) Enter the following parameters:
    User:  Administrator
 Password: Administrator
      e) Click OK.










4) Create Logical column of Sales Fact table


a)  In The Physical Layer expand SALES table.
b)  Select and drag AMOUNT_SOLD column from the Physical layer to the Sales Fact logical table in the Business Model and Mapping layer. A new AMOUNT_SOLD logical column is added to the Sales Fact logical table.
In the Business Model and Mapping layer, double-click AMOUNT_SOLD logical column to open the Logical Column dialog box.
c) Go to the General tab and in the Name field, rename the column to “Amount    
    Sold”
d) Click the Aggregation tab.


e) In the Default aggregation rule drop down list, select SUM.
      Aggregation rule determines the aggregation type to be used in the SQL 
      query generated by OBI. For example, sum, avg, count etc.


f) Click OK to close the Logical Column dialog box. Notice that the logical column icon is changed to indicate an aggregation rule is applied.


g)  Pull the QUANTITY_SOLD column from the SALES table to the Sales Fact


h)  Add the aggregation rule as SUM for Quantity Sold logical column.
     It should appear as like below




5) Create Dimensions in Business Model and Mapping Layer as follows :
         a)  Select the following tables in the Physical layer.
              CHANNELS, TIMES, PRODUCTS, CUSTOMERS and PROMOTIONS

         b)  Drag the selected tables from the Physical layer onto the DW     
              business model folder in the Business Model and Mapping layer. This 
              automatically creates logical tables in the Business Model and   
              Mapping layer.




         c) Right-click the DW business model and select Business Model   
            Diagram > Whole Diagram.       

         d)  Place the Sales Fact table in the middle. To adjust the zoom   
              factor, right click on the empty space of diagram window and select 
              the zoom.
                                                         

         e) Click the New Join button in the toolbar.



        
        
         f) Click on the PRODUCTS table icon first and then click on Sales Fact  
            table icon in the Logical Table Diagram. The Logical Join dialog box   
            opens. Leave the defaults as they are and click OK.




        g) The join is creating a one-to-many (1:N) relationship that joins the   
            key column in the first table to a column that is a foreign key in the 
            second table. Create the joins and repeat the steps for the remaining 
            tables. You don’t have to specify any join conditions in Business 
            Model; BI server will pick the joins defined in the Physical Layer.

               CHANNELS join with Sales Fact
               CUSTOMERS join with Sales Fact
               TIMES join with Sales Fact
               PROMOTIONS join with Sales Fact


         Observe and close Logical Table Diagram window.





6)  Select File > Save to save the DW repository

7)  Click NO to check global consistency.

8)  Remain logged in to the Oracle BI Administration Tool for the next lab.

Rename Business Model


1) To change a column name manually, double click a column and change the name. For example change ‘CALENDAR YEAR’ to ‘Calendar Year’.


 2) To automate column name changing, Click Tools > Utilities and from utility dialog box, click Rename Wizard and then Execute.

3) In the Rename Wizard, click the Business Model and Mapping tab and select the DW business model.

   
4) Click the Add Hierarchy button and click Next button.



  
5) First check ONLY Logical Table and Logical Column and click Next.




6) Select All text lowercase and click Add.

7) Click Change each occurrence of ‘_’ into a space and click Add.

8) Click First letter capital and click Add.

Similarly add other rules as per the screenshot. The order of the selected rules is very important, it should    appear as shown in next screenshot.




9) Click next and click Finish and verify that logical tables and logical columns in the Business Model and Mapping layer are renamed as per rules.


10)  The Logical Table names needs to be renamed further. It can be done manually > right click the logical table > select the Rename option.


11) After renaming, the logical tables it should appear as :


 Deleting Unnecessary Business Objects


1) Expand Channels logical table in the Business Model and Mapping layer. Use Ctrl + click to select the ID columns except Channel ID(we have to retain the primary key always).

2)  Press Delete key from keyboard or Right-click either of the selected columns and select Delete.

3)  Click Yes to confirm delete.
                                                                    
4)  Verify that the Channels logical table now has only three logical columns.

5)  Repeat the steps to delete the ‘ID’ logical columns from the following tables

a)  Customers
b)  Products
c)  Promotions
d)  Times

Note: If you choose ‘ctrl’ button to select multiple object make sure the Logical Table is not highlighted.
6)   Save the repository. Do not check global consistency.

In this post, we will learn How to create the relation between the tables using Physical Layer Diagram.

Table Name

COUNTRIES

CUSTOMERS

PRODUCTS

TIMES

PROMOTIONS

CHANNELS

SALES

COSTS

NQSConfig.INI file is the first file you have to know when you are started working with Administration Tool.

This file contains the information that which rpd is currently running in online, cache information, authentication types and etc.,

After the installation you can see two folder in the installed path.


i.e 1. Oracle BI  - Related Administration Tool
     2. Oracle BIData - Related to Presentation Server.

you can edit and can change the NQS confiq.INI file whenever you want from the following path.

C:\Oracle BI\Server\Config\ NQS Config.INI

and same like, If you have created any new catalog in the presentation services and want to make that default, then you have change the one more file .i.e instanceconfig.xml file.

instanceconfig.xml file is available in the the following path:

C:\Oracle BIData\Config\instanceconfig.xml

We will learn How to create new RPD and New catalog one by one in the coming post.


Keep Rocking!!!