By John Kauffman, Fabio Claudio Ferracchiati, Brian Matsik, Eric N. Mintz, Jan D. Narkiewicz, Kent Tegels, Donald Xie, John West, Jesudas Chinnathampi, James Greenwood
What's this publication about?For a website to supply its clients an event that improves on that of newspapers or textbooks, it wishes the way to switch the data it comprises dynamically - and that suggests it wishes entry to a knowledge resource. during the mix of ASP.NET and ADO.NET, Microsoft offers every thing essential to entry, learn from, and write to a database, after which let net clients to view and control that facts from an internet browser. during this ebook, we are going to exhibit you ways it truly is done.What does this publication cover?Packed with transparent factors and hands-on examples, starting ASP.NET Databases includes every thing you will have in your trip to changing into a convinced, profitable programmer of data-driven websites. particularly, we will glance at:Connecting to universal info assets, together with SQL Server and MS AccessReading info with information reader and dataset objectsCreating and deleting files, and modifying dataDisplaying information with ASP.NET's internet server controlsWriting and utilizing kept systems from VB.NET codePlacing your information entry code in reusable type librariesThe publication closes with a real-world case learn that consolidates the tutorials during the ebook right into a functional result.Who is that this e-book for?To use this ebook, you wish a working laptop or computer operating both home windows 2000 or home windows XP specialist version. The examples it comprises won't run on home windows XP domestic Edition.This e-book is for those who have a few adventure of programming ASP.NET with visible simple .NET, are acquainted with the operation of the .NET Framework, and need to profit how you can use ASP.NET to make data-centric net purposes. No earlier wisdom of database programming is critical.
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Extra resources for Beginning ASP.NET Databases Using VB.NET
Second, the connection object doesn't directly cause the data store to perform reading or writing on the data. NET at the data consumer end, and by the database engine (or some other data source) at the data provider end. The word "session" is used in two different contexts, and it is important to distinguish them properly. While you may be familiar with the term as it refers to a visitor's interaction with the pages of a web site, a session may also be understood in the context of establishing a connection with a source of data.
TheUPDATE clause includes the name of the table we want to update. The SET clause contains the field(s) and their new values (if you want to update multiple fields at the same time, separate each 'field = value' pair by a comma). Again we see the WHERE clause, just like in our other examples. Here, it ensures that we only affect the row that we just added, with ShipperID = 4. Note Be careful with UPDATE (and DELETE) statements! If you forget to add theWHERE clause in a SELECT statement, the query returns more rows than you wanted.
Codd proposed the original concept for the model in a 1970 paper entitled A Relational Model of Data for Large Shared Data Banks. Later, Dr Codd clarified his model in a two-part article inComputer World (14th and 21st October, 1985). He defined twelve rules (Codd's Rules) that a DBMS must meet to be considered a relational database management system (RDBMS). We will now examine each of these rules. Note that many database products are considered "relational" even if they do not strictly adhere to all twelve of these rules.
Beginning ASP.NET Databases Using VB.NET by John Kauffman, Fabio Claudio Ferracchiati, Brian Matsik, Eric N. Mintz, Jan D. Narkiewicz, Kent Tegels, Donald Xie, John West, Jesudas Chinnathampi, James Greenwood