Get Alone Together: Why We Expect More from Technology and Less PDF

By Sherry Turkle

ISBN-10: 0465010210

ISBN-13: 9780465010219

Think about Facebook—it’s human touch, in basic terms more straightforward to have interaction with and more straightforward to prevent. constructing know-how supplies closeness. occasionally it provides, yet a lot of our glossy lifestyles leaves us much less hooked up with humans and extra hooked up to simulations of them.
In Alone Together, MIT expertise and society professor Sherry Turkle explores the ability of our new instruments and toys to dramatically adjust our social lives. It’s a nuanced exploration of what we're taking a look for—and sacrificing—in a global of digital partners and social networking instruments, and an issue that, regardless of the hand-waving of today’s self-described prophets of the long run, will probably be the following new release who will chart the trail among isolation and connectivity.

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You have to cast the object to the expected type. Be aware that if the query you execute returns more than one column or row, you will not get an exception. They will be ignored and you will be none the wiser, so be sure to write your queries correctly. SqlHelper The syntax for connecting to a database and executing queries can become quite repetitive. A good practice is to wrap these calls into a single class that the DAL can easily call with typed parameters. Luckily, Microsoft already did this.

The Single method enables you to tell Linq to return one record with the criteria; and if no records are found, to throw an error. Behind the scenes, Linq is actually creating a SELECT SQL statement for you. The syntax for querying the database in this sample uses a Lambda expression. This expression is referred to as a predicate. A predicate is a Boolean expression that is intended to indicate membership in a group. You can also put and and or conditions in the Lambda expression. SubmitChanges()saves the changes to the database.

Figure 2-2 This table will be used in Chapter 6 when you build the application’s role-based security model. The table is prefixed by ENT, which denotes that this table is part of the reusable Enterprise framework being built in this book and can therefore be used for any application, not just the sample HR application being built. Before moving on, let’s look at the standard fields in each table. Each table has a primary key called TABLENAMEId, which is an identity field and the primary key of the record.

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Alone Together: Why We Expect More from Technology and Less from Each Other by Sherry Turkle


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