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Although you should be intimately familiar with the presentation at this point, it s a good idea to keep a set of speaker notes on the podium in the form of a printed story template or storyboard outline. Don t use the complete notes pages as speaker notes the written text in the notes area might tempt you to read from the page, and you d need to physically ip from one page to the next, which would be distracting. Instead, when you print your key PowerPoint documents, consider using as speaker notes the story template, a text outline of the storyboard, or thumbnail images of the storyboard. To print these key documents, follow these steps:

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The interface for the Postgres library is totally different from that for MySQL or SQLite, and it s documented in full at http://ruby.scripting.ca/postgres/rdoc/. (You can also access PostgreSQL databases using the database-agnostic DBI library, covered in the later section DBI: A Generic Database Connectivity Library. )

But what about the third function, reduce This is a tricky one, and I confess that I rarely use it. But people used to functional programming may find it useful. It combines the first two elements of a sequence with a given function, and combines the result with the third element, and so on until the entire sequence has been processed and a single result remains. For example, if you wanted to sum all the numbers of a sequence, you could use reduce with lambda x, y: x+y (still using the same numbers):2 >>> numbers = [72, 101, 108, 108, 111, 44, 32, 119, 111, 114, 108, 100, 33] >>> reduce(lambda x, y: x+y, numbers) 1161 In this example, all the numbers of numbers are summed by successively adding the current sum and the next number in the sequence. What actually happens is very close to this: sum = 0 for number in numbers: sum = sum + number

Oracle Corp. is a company that provides database tools, services, and software, and is primarily known for the development of the Oracle RDBMS, a relational database management system. The Oracle database system is not open source and is not, in its full version, available for free to use commercially. However, it s reasonably popular in enterprise situations, so you might need to know how to connect to it.

Open the Microsoft Of ce Word 2007 document that contains your story template. If you made any changes to the headlines in the storyboard, update the Word 2007 document to re ect those changes, and then print a copy. To print a text outline of the storyboard, open the PowerPoint le, click the

Note Oracle does offer versions of its database systems for free, but they are only to be used for

As with the other database systems, access to Oracle databases is provided through a library, in this case called OCI8.

Oracle has provided a great tutorial on its Web site that s specific to getting Ruby connected to Oracle databases, and that should be suitable for anyone familiar with Oracle databases. For more information see http://www.oracle.com/technology/pub/articles/ haefel-oracle-ruby.html. You can use the OCI8 library through the database-agnostic DBI system, as covered in a following section.

Microsoft Of ce Button, click Print, and in the Print What area of the Print dialog box, click Outline View. Then click OK.

2. Actually, instead of this lambda function, you could import the function add from the operator module, which has a function for each of the built-in operators. Using functions from the operator module is always more efficient than using your own functions.

Microsoft SQL Server (sometimes known as MS SQL Server) is Microsoft s relational database management system software, and is the primary database server used on Microsoft platforms (although most of the other systems covered in the past few sections work on Windows too). The way you connect to a Microsoft SQL Server can vary depending on what operating system your script is running under. For example, at the time of writing, on Windows, you can use ActiveX Data Objects (ADO) with WIN32OLE to connect directly to the server. On OS X, you can use iODBC. On Linux and other Unix-related platforms, you can use unixODBC. However, connecting to MS SQL Server from Ruby is an uncommon task, and the drivers are changing on a regular basis, so the best references are tutorials and blog posts found online. Use your favorite search engine to search for ruby ms sql or ruby microsoft sql server and you ll find several useful resources. At the time of writing, these pages provide the best instructions for approaching MS SQL Server from Ruby:

http://wiki.rubyonrails.org/rails/pages/ HowtoConnectToMicrosoftSQLServer http://wiki.rubyonrails.org/rails/pages/ HowtoConnectToMicrosoftSQLServerFromRailsOnOSX http://wiki.rubyonrails.org/rails/pages/ HowtoConnectToMicrosoftSQLServerFromRailsOnLinux

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