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To print thumbnail images of the storyboard, in the Print What area, click Handouts and select 6 or 9 in the drop-down list. Leave the Print Hidden Slides check box selected, and then click OK. To print handouts from notes pages, click Print, and in the Print What area, click Notes Pages. If you used hidden slides, clear the Print Hidden Slides check box, and then click OK. You can also print the individual slides one per page, but you should have enough material with just the thumbnail images of the storyboard and the notes pages printouts.

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If you decide to take the DBI route, read the following section for information on how to use Ruby s DBI library.

In the original example, reduce takes care of the sum and the looping, while the lambda represents the expression sum + number. Let s take a peek at what s happening. The following defines a function for adding numbers that also prints out its arguments: def peek_sum(x, y): print 'Adding', x, 'and', y return x + y Let s use this with reduce: >>> reduce(peek_sum, [1, 2, 3, 4, 5]) Adding 1 and 2 Adding 3 and 3 Adding 6 and 4 Adding 10 and 5 15 What happens is that reduce first adds 1 and 2, then adds the result with 3, and so on until all the elements have been added. Finally, after printing out all the operations it goes through, the sum (15) is returned.

The DataBase Interface (DBI) library is a database-agnostic library that uses database drivers and provides a generic interface to them. This allows you to write your code

While you re at it, print any additional handouts you ll reference during the presentation, such as Microsoft Of ce Visio 2007 diagrams or ow charts, Microsoft Of ce Excel 2007 spreadsheets, and detailed charts and graphs.

without a specific database in mind, and lets you use the same methods on nearly all databases. This means you lose the ability to access some of the more-advanced features offered by database drivers, but DBI can give you a little more simplicity and crossdatabase operability. Unfortunately, at the time of writing, the DBI library is not available as a RubyGem (although this might change, so you might want to perform a quick search, as it ll make the installation a lot easier!). Therefore, to install, you need to refer to the instructions and files available at http://ruby-dbi.rubyforge.org/. These instructions and files are updated regularly, so I won t repeat them here for fear of being out of date by the time you re reading this.

Note If you re a Perl programmer, DBI will be instantly familiar to you, as it follows many of the same

Once you ve printed all of the documents, assemble them in a folder so that you have them in a single place for reference.

Once you have Ruby DBI installed, along with any database drivers you require, DBI makes it easy to use a database supported by your drivers, as demonstrated in this example:

Note There is a built-in function called sum, which returns the sum of a sequence. (It cannot be used to

require 'dbi' # Connect to a database db = DBI.connect('DBI:Mysql:db_name', 'username', 'password') # Perform raw SQL statements with 'do', supports interpolation db.do("INSERT INTO people (name, age) VALUES ( , )", name, age) # Construct and execute a query that will return data in # the traditional way.. query = db.prepare('SELECT * FROM people') query.execute while row = query.fetch do puts row.inspect end query.finish

To customize your speaker notes using thumbnail-size images of the storyboard, go to the View tab, and in the Presentation Views group, select Handout Master and make adjustments there.

# Pull data direct from the database in a single sweep # This technique is cleaner than the previous db.select_all('SELECT * FROM people') do |row| puts row.inspect end db.disconnect

In this example you connect to a MySQL database using the Mysql driver, but if you had the Oracle driver installed for use by DBI, you could just as easily connect to an Oracle database using a DSN such as DBI:OCI8:db_name. For more up-to-date information about this functionality, and how to get other drivers, refer to http://ruby-dbi. rubyforge.org/.