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For the Try This exercises in previous chapters, you created a number of persistent base tables that are capable of storing data. In this chapter, you learned how to create SELECT statements that allow you to query data in base tables. As a result, this exercise focuses on creating SELECT statements that query data in the tables that you created. However, before you can actually query those tables, data must be stored within them. While I do not cover inserting data until 8, I do provide the statements you need to insert the data in the Try_This_ 07.txt file, which you can download from our web site. The file contains a series of INSERT statements that allow you to populate the tables, along with the SELECT statements used in this exercise. You can also view these statements in Appendix C. If you look at the Try_This_07.txt file, you ll see a series of INSERT statements that are grouped together according to the tables that you created in the INVENTORY database. For example, the first set of INSERT statements are for the CD_LABELS table, as shown in the following statements:

--Insert data into the CD_LABELS table INSERT INTO CD_LABELS VALUES ( 827, 'Private Music' ); INSERT INTO CD_LABELS VALUES ( 828, 'Reprise Records' ); INSERT INTO CD_LABELS VALUES ( 829, 'Asylum Records' ); INSERT INTO CD_LABELS VALUES ( 830, 'Windham Hill Records' ); INSERT INTO CD_LABELS VALUES ( 831, 'Geffen' ); INSERT INTO CD_LABELS VALUES ( 832, 'MCA Records' ); INSERT INTO CD_LABELS VALUES ( 833, 'Decca Record Company' ); INSERT INTO CD_LABELS VALUES ( 834, 'CBS Records' ); INSERT INTO CD_LABELS VALUES ( 835, 'Capitol Records' ); INSERT INTO CD_LABELS VALUES ( 836, 'Sarabande Records' ); --End inserts for the CD_LABELS table

You will need to copy these statements into your client application and execute them. Each INSERT statement adds one row of data to the applicable table. For example, the first INSERT statement listed in the preceding code adds one row of data to the

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However, the department should pick those measurements that are relevant to improving the sales process To be profitable, a business must be able to get a sales price higher than the cost of the product as well as sales volume to capitalize on the economy of volume In addition, the number of new sales orders is a good indicator of the strength of the business Therefore, the ratio of new business to total sales.

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CD_LABELS table. The values that are added are 827 (for the LABEL_ID column) and Private Music (for the COMPANY_NAME column). Again, I present the INSERT statement in greater detail in 8. If you are uncomfortable inserting this data before reading about the INSERT statement, I suggest that you review the information in 8 before working on this Try This exercise and then return here to perform each step. However, if you decide to do this exercise now, then you simply need to execute each statement, as described in the following steps.

We begin with the Form Design Window shown in Fig. 5.34(a) and alter the control properties so that the Form Design Window takes on the appearance shown in Fig. 5.34(b). We then add an event procedures for each of the two command buttons. Consider the first event procedure, which is associated with the Go button. (The second event procedure simply terminates the computation, as should be obvious by now.)

As you probably noticed, each block of INSERT statements begins and ends with a line that starts off with double hyphens (--). Double hyphens indicate that the line of text that follows is a comment. Your SQL implementation will simply skip over these lines. The comments are there only to provide information to the SQL programmers so they can better understand the code.

1. Open the client application for your RDBMS and connect to the INVENTORY database. 2. Open the Try_This_07.txt file and copy the INSERT statements into your client application.

Most applications will allow you to execute blocks of statements, rather than having to enter the data one row at a time. If your application supports executing multiple statements, execute the statements one table at a time by copying and pasting blocks of statements into your client application. You should enter data for each table in the order that the data appears in the Try_This_07.txt file. For example, you should insert values into the CD_LABELS table before the COMPACT_DISCS table. For each INSERT statement that you execute, you should receive a message acknowledging that the row has been inserted into the table. After you ve populated each table with data, you re ready to move on to the next step.

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