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The cube name is automatically supplied when you select a template. In this case, the default name is Adventure Works. If you don t use a template when building the cube, the default name is the DSV name. You can always edit this name later if you re not sure what name to provide on this page. 2. Expand the Product node, and then expand the Attributes folder to view the attributes that will be created for this dimension. The preview of the cube structure on this page of the Cube Wizard is your first comprehensive view of the cube. If you see something that requires a change, you can move back to the appropriate page of the Cube Wizard, but remember that you can always make changes to this structure later if you want to add or delete objects. If you select the Generate Schema Now option, you will begin the Schema Generation Wizard. A schema is a denormalized relational database containing tables for the measure groups and dimensions that you use in the cube. You will learn more about generating a schema when you run the Schema Generation Wizard later in this chapter. 3. Click Finish to complete the Cube Wizard. The main window now displays the Cube Structure tab of the Cube Designer, as shown below:

Figure 3-6

The red lines in the Measures pane indicate there is a problem with the measures. Because there is no DSV associated with the measures, an error condition results. You ll fix the error condition later in this chapter when you generate a schema.

Your attention is drawn to the bottom left-hand corner and the message Possibly mistaken empty statement. If you double-click on this message, you find that the cursor moves to a point just after the if condition (I ve indicated it with an arrow in Figure 3-6). The C# compiler is trying to tell you something about this statement. If you go back to the original listing, you find that your brother has added an extra semicolon at the end of the condition. The problem is that this ends the statement controlled by the condition. So if the R button or the R key is pressed, the program will decide to do nothing (an empty statement) and then go on and do the next statement regardless, leading to the effect that you are seeing. Figure 3-7 shows how this happens.

3:

and those who use microcomputers to run bulletin-board systems. This chapter will look at the security needs of these types of users.

if (pad1.Buttons.B == ButtonState.Pressed I I Keys.IsKeyDown(Keys.R) ; ) { redIntensity++; } This ends the statement controlled by the condition

Congratulations! You ve just built your first cube. You can see in the lower left corner there is a Dimensions pane that displays the two dimensions in the cube. In the upper left corner, in the Measures pane, you can see one measure group that contains two measures. Since the cube is not connected to a data source yet, there isn t a DSV visible in the center window. However, you can still review the cube structure, and you can add to the cube structure or modify it until you get it just right. The Cube Wizard does not create the actual cube files or load values from the data warehouse. To use the cube, you must first process it, which you will do later in this chapter.

The Cube Structure tab of the Cube Designer organizes the dimension and measure objects that are defined for the cube In this workspace, you can review and change the properties of each object As you select an object on the Cube Structure tab, the object s properties are available for editing in the Properties window The Cube Structure tab also provides a diagram pane in which you can view the underlying table structures for the cube to see columns in the dimension and fact tables that are related If the tables are not yet created, you will see a link, Click Here To Generate Data Source View This link launches the Generate Schema Wizard, which you ll learn more about later in this chapter In this procedure, you ll change the default measure to Sales Dollars and explore the Cube Structure tab of the Cube Designer.

Figure 3-7

If you are like most people who use mainframes from a remote location, you use a microcomputer and a modem A microcomputer used as a smart terminal can do a very good job of helping you work with larger systems, and it can provide much more power than a dumb terminal A microcomputer can save data sent from the mainframe to the user; it can dial the computer and log the user on automatically; it can transmit files from the user to the mainframe; and it can be made to emulate different types of dumb terminals when necessary The only problem with using a microcomputer to access other systems is that, as you will see in the following section, you can find yourself "done in" by the same sophistication that makes your micro so easy to use Autologon macro is computer jargon for a type of computer shorthand.