ASP.NET PDF Viewer using C#, VB/NET

That is quite a bit of work from one (albeit long) statement Overall, this code demonstrates the effectiveness of T-SQL s set-oriented capabilities, which enable you to quickly and easily work with, filter, relate, and perform calculations on sets of data Indeed, T-SQL excels at processing sets of data, which is not surprising given the fact that it is, after all, a database language T-SQL also has many language constructs that are similar to those of a typical procedural programming language These include WHILE loops, variable declaration and assignment, cursors, decision branching (IF/ELSE, CASE), etc However, although T-SQL excels at setoriented processing, its procedural capabilities pale in comparison to most general purpose languages, particularly NET languages such as C# or VB NET.

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On Windows Vista this is done using Control Panel Programs Programs and Features Turn Windows features on or off Ensure the checkbox at Internet Information Services World Wide Web Services Application Development Features ASPNET is checked Ensure that the default web root folder c:\inetpub\wwwroot exists and that you have copied your aspx and webconfig files to that directory Ensure the webconfig file contains an entry for the F# compiler If not, ASPNET will not be able to invoke the compiler dynamically This is automatically done if you have used the F# Website project type Check that you can access other local URLs such as http://localhost/iisstarthtm, the default starting page for IIS If not, check the settings for IIS under Control Panel Administrative Tools Internet Information Services (IIS) Manager Add a debug entry to your web.

Here, connection represents the Connection object, datum represents an object of type oracle.sql.Datum (an Oracle abstract class extended by oracle.sql.* objects such as oracle.sql.NUMBER), and sqlTypeCode represents the SQL typecode (from the standard java.sql.Types or oracle.sql.OracleTypes class) of the Datum object. The ORAData and ORADataFactory interfaces do the following: The toDatum() method of the ORAData class converts the data into an oracle.sql.* representation. The create() method of ORADataFactory creates and returns an ORAData instance. The JDBC driver uses this method to return an instance of the custom object class to your Java application. It takes as input an oracle.sql.Datum object and an integer indicating the corresponding SQL typecode as specified in the OracleTypes class. In the next section, we ll look at an example of using JPublisher to generate custom classes that implements the ORAData and ORADataFactory interfaces.

config file as shown in Listing 14-3 to ensure that verbose debugging information is generated for your F# code Otherwise, errors reported by ASPNET will be difficult to diagnose..

Furthermore, since T-SQL is an interpreted language, the execution of procedural logic is much slower than the execution of equivalent logic in a compiled language, such as C++, or even in a just-in-time (JIT) compiled language, such as any of those found in NET For these reasons, database programmers have always strived to fully leverage the set-oriented features of T-SQL, while resorting to its procedural constructs only when necessary..

Using JPublisher, we will now generate custom classes for the address object type that implements the ORAData and ORADataFactory interfaces. The steps involved in creating and using a custom class called MyAddressORAData that implements the ORAData and ORADataFactory interfaces and represents the object type address are as follows: 1. Generate custom classes using JPublisher. In this step, we use JPublisher to generate a custom class that implements the ORAData and ORADataFactory interfaces. 2. Extend the generated classes to add functionality (if required). If you want to add to the functionality of the generated classes, extend the class and make any changes, since directly changing generated classes is error-prone. 3. Perform DMLs using the custom classes. Use the generated classes in your calling program to select, insert, update, or delete objects. Notice that unlike the SQLData case, we don t need to add a type map to the Connection object because of the way the generated classes work. The following sections explain these steps further.

A number of application settings are relevant to web applications, but most of these are beyond the scope of this book. The easiest way to get some guidance is by looking at the web.config.comments file. For Microsoft .NET, you can find this file in your Windows directory and the Microsoft.Net\Framework\ {your .NET version}\CONFIG folder within. This same directory also contains another configuration file called machine.config, which has settings that apply to all web applications on the host machine. Many of the common, default settings are stored in this file.

We use the input file input_address_oradata.txt, which contains the following line: SQL ADDRESS GENERATE AddressORAData AS MyAddressORAData This line instructs JPublisher to generate a class, MyAddressORAData, that will extend the class AddressORAData.