.NET/ASP.NET/C#/VB.NET PDF Document SDK

For retrieving the collection elements as an int array, we simply invoke the Oracle extension method getIntArray() of the ARRAY class: int[] arrayInJava = (int[])array.getIntArray(); for( int i=0; i < arrayInJava.length; i++ ) { System.out.println(arrayInJava[i]); } System.out.println("Exiting _doUseNumericExtensionsForNumArray"); } In the next section, we define the method _printArrayInfo() of the class DemoQuerying CollectionOfBuiltInTypes. This method simply prints out some metadata about the supplied ARRAY object. For example, you could use the method getArrayType() of the ArrayDescriptor class to figure out if a particular collection is a varray or a nested table in your Java code. Retrieving Information About the ARRAY Object The method _printArrayInfo() uses some of the Array and ARRAY methods discussed earlier to print out some useful information about a given ARRAY object. private static void _printArrayInfo( ARRAY array ) throws SQLException { //print some info from array for demo System.out.println( "\tbase type name: " + array.getBaseTypeName() ); System.out.println( "\tsql type name: " + array.getSQLTypeName() ); System.out.println( "\tlength: " + array.length() ); ArrayDescriptor descriptor = array.getDescriptor(); The code presented here gives you one way of finding out if the underlying collection is a nested table or a varray: if( descriptor.getArrayType() == ArrayDescriptor.TYPE_NESTED_TABLE ) { System.out.println( "\tit is a nested table." ); } else { System.out.println( "\tit is a varray." ); } } }// end of program In the next section, we examine how much you gain in terms of performance when you retrieve a numeric collection, from an ARRAY object, using the Oracle s numeric extension methods (e.g., getIntArray()) instead of methods such as getArray() and so on.

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Handles the encryption and decryption of ASP.NET configuration files and sections within Manages users and their accounts Adds user information (for instance, user preferences) that is to be collected and stored for each user Manages roles and their associated access rights Manages session state for a user visit Stores information about each page and its place in the site s structure Allows the monitoring of an application for control purposes Manages a set of controls and their content and appearance that make up a portal

Some of the examples in this book are designed to run in the SQL*Plus environment. SQL*Plus provides many handy options and commands that we ll use frequently throughout this book. For example, some of the examples in this book use dbms_output. For dbms_output to work, the following SQL*Plus command must be issued: SQL> set serveroutput on

Of course, Service Broker is not a messaging panacea. This tight integration with SQL Server 2005 comes at a steep price: Service Broker can only exchange messages with other Service Brokers (running in SQL Server 2005, of course). In contrast, MSMQ can send messages to any Windows machine running MSMQ and even some mainframes with the proper bridging software. And BizTalk, with its flexible adapter mechanism, can accept messages from just about anyone and send messages just about anywhere. Keep in mind, however, that even a single instance of SQL Server 2005 can make good use of Service Broker internally to provide reliable asynchronous interaction between it and the applications using the data all without resorting to a general-purpose messaging technology like MSMQ. In fact, this may well describe the most common usage scenario.

By default (as guided by the server s machineconfig file), the data-aware services use SQL providers that work against a SQL Express database (by default aspnetdbmdf in the App_Data folder) The relevant part of the machineconfig containing the default connection strings is as follows: <connectionStrings> <clear /> <add name="LocalSqlServer" connectionString="data source=\SQLEXPRESS;Integrated Security=SSPI; AttachDBFilename=|DataDirectory|aspnetdbmdf;User Instance=true" providerName="SystemDataSqlClient" /> </connectionStrings> This defines a LocalSqlServer connection string that all data-centric providers use by default, which points to the aspnetdbmdf SQL Express database in the web data directory (Note how the database server is set to be running as a SQL Express named instance) This database file is automatically created upon first use or by triggering the website administration console.

Alternatively, SQL*Plus allows you to set up a login.sql file, a script that is executed each and every time you start a SQL*Plus session. In this file, you can set parameters such as serveroutput automatically. An example of a login.sql script (taken from 2, Your Performance Toolkit, of Tom Kyte s Effective Oracle by Design [Osborne McGraw-Hill, ISBN: 0-07-223065-7]) with self-explanatory comments is as follows (you can edit it to suit your own particular environment): REM REM set set turn off the terminal output - make it so SQLPlus does not print out anything when we log in termout off head off