Odp net
Download
1 / 21

ODP.NET - PowerPoint PPT Presentation


  • 127 Views
  • Updated On :

ODP.NET. Oct 2004. Access Oracle from .NET Using C#. Alex Hoyos. Agenda. Define MS .NET Web development and .NET (basic stuff) IDE used Different ways of talking to Oracle from .NET ODP.NET – crack it open and get it ready Samples. What is MS NET. Architecture.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'ODP.NET' - kylemore


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript

Access oracle from net using c l.jpg

Oct 2004

Access Oracle from .NET Using C#

Alex Hoyos


Agenda l.jpg
Agenda

  • Define MS .NET

  • Web development and .NET (basic stuff)

  • IDE used

  • Different ways of talking to Oracle from .NET

  • ODP.NET – crack it open and get it ready

  • Samples


What is ms net architecture l.jpg
What is MS NET. Architecture

IL (Intermediate Language),

CLR (Common Language Runtime),

Base Class Library (BCL) is a common library used by all languages, GC (Garbage collection) is the responsibility of the CLR, not the language.

  • .NET 20K feet high view…


What is ms net l.jpg
What is MS .NET

VB

C++

C#

J#

..

ASP.NET Web Forms

Web Services

Windows FORMS

ODP.NET

ADO.NET

BASE CLASS LIBRARY

CLR - COMMON LANGUAGE RUNTINE

OPERATING SYSTEM


Odp net lingo l.jpg
ODP + .NET lingo

  • Assembly: Microsoft’s term for the module that is created when a DLL or .EXE is complied by a .NET compiler.

    ODP.net Assembly is Oracle.DataAccess.dll

    Namespaces:

    Oracle.DataAccess.Client (e.g. OracleConnection)

    Oracle.DataAccess.Types (e.g. OracleClob Class)


Oracle best database for net l.jpg
Oracle: Best Database for .NET

  • ODP.NET allows full access to .NET

    • No limitation to using .NET functionality.

    • Still requires you install the Oracle Client Software (9 or above)


Oracle and net data access l.jpg
Oracle and .NET Data Access

  • Oracle Data Provider for .NET (ODP.NET)

    • Developed by Oracle

    • Best performing provider

    • Exposes the most Oracle DB features

    • Based upon Microsoft ADO.NET spec

  • 3rd party Oracle providers

    • Microsoft .NET Data Provider for Oracle (Microsoft)

    • Connect for .NET (DataDirect)

  • Other Oracle data access methods

    • OLE DB .NET via OLE DB

    • ODBC .NET via ODBC


Odp net basics l.jpg
ODP.NET Basics

  • Available today in production for free

    • http://otn.oracle.com/tech/windows/odpnet

    • Original release: Dec. 2002

  • Can be used with Oracle8, Oracle8i, Oracle9i, and Oracle10g database servers

    • Database server can be on Unix, Linux, Windows, etc.

    • Database client on Windows

  • Supports VS.NET 2002 and 2003

  • Supports .NET Framework 1.0 and 1.1


Odp net object model l.jpg
ODP.NET Object Model

Disconnected

Layer

Connected Layer

(ODP.NET)

Data

Layer

Oracle

DataAdapter

OracleCommand

Builder

DataSet

Oracle

DataReader

Oracle

Command

Oracle

Transaction

Oracle

Connection

Oracle


Odp net features l.jpg
ODP.NET Features

  • Full PL/SQL support

    • Packaged, non-packaged, anonymous, autonomous

    • *Batch SQL available with anonymous PL/SQL

  • Native Oracle data types

    • LOBS, REF Cursors, BFiles, N-data types, Dates, TimeStamps, Longs, Raws, etc.

    • Safe type mapping to .NET data types

  • *Connection pooling

    • Min, Max, Timeout, Lifetime, Increment, Decrement

* Performance tip


Odp net installation l.jpg
ODP.NET Installation

  • The Oracle.DataAccess.dll assembly is installed in the ORACLE_

  • BASE\ORACLE_HOME\bin directory.

  • Documentation and the readme.txt are installed in the ORACLE_BASE\ORACLE_HOME\ODP.NET\doc directory.

  • Samples are provided in the ORACLE_BASE\ORACLE_HOME\ODP.NET\Samples directory.

* Performance tip


Visual studio net integration l.jpg
Visual Studio .NET Integration

  • Dynamic Help

    • ODP.NET documentation available – Hit F1 key

  • Intellisense

  • Connection pooling is enabled in ODP.NET (by default).


Odp net connection options l.jpg
ODP.NET Connection Options

  • Proxy user authentication

    OracleConnection con = new OracleConnection();

    con.ConnectionString = "User Id=customer;Password=lion;" +

    "Data Source=oracle;Proxy User Id=appserver;Proxy Password=eagle; ";

    con.Open();

  • Operating System Authentication

    OracleConnection con = new OracleConnection();

    con.ConnectionString = "User Id=/;Data Source=oracle;";

    con.Open();

* Performance tip


Odp net connection l.jpg
ODP.NET Connection

  • Connection pools are created by the connection pooling service using the ConnectionString as a signature to uniquely identify a pool.

    OracleConnection con = new OracleConnection();

    con.ConnectionString = "User Id=scott;Password=tiger;Data Source=oracle;" +

    "Min Pool Size=5;Max Pool Size=20;Connection Lifetime=120;” +

    “Connection Timeout=60; Incr Pool Size=5; Decr Pool Size=2";

    con.Open();

    NOTES:

  • Connection Lifetime = Maximum life time (in seconds) of the connection (default 0)

  • Connection Lifetime enforced when a connection is going back to the connection pool.

  • Connections are closed every three minutes (connection Lifetime..)

  • * Performance tip


    Workshop example vs net l.jpg
    Workshop Example VS.NET

    • NOTE: Right-click and select “open in new Window” to prevent the current powerpoint from being overlaid and thus allowing you to continue. If you have a popup blocker, this may prevent a new window from opening. E.g. with Google Popup blocker, you need to press the ctrl key simultaneously.

      WebEx Pre-recorded Sessions

    • Create Skeleton ASP.NET Web Application

    • Add Populate Dept functionality

    • Add Insert Dept Functionality

    • Execute Application


    Odp net performance and scalability tips l.jpg
    ODP.NET Performance and Scalability Tips

    • Close all ODP.NET objects when finished (e.g. OracleConnection)

      • Do not count on the garbage collector to do this automatically

    • Use anonymous PL/SQL when batching commands

      • Makes only one DB round trip

      • Use associative arrays to bind parameters

    • Use FetchSize (OracleDataReader) and RowSize (OracleCommand) to tune data retrieval performance

    • Use InitialLOBFetchSize and InitialLongFetchSize to tune LOB and LONG retrieval performance


    Performance l.jpg
    Performance

    • Use Anonymous PL/SQL blocks.


    Slide19 l.jpg
    FAQ

    • Q: Can ODP.NET work with Oracle8, Oracle8i, Oracle9i, and Oracle10g database (DB) servers?

    • Yes, but you will need to use an Oracle9i Release 2 client or higher


    Slide20 l.jpg
    FAQ

    • Q: Do I need to install ODP.NET on my Oracle DB server?

    • A: No. You only need to install ODP.NET on your client or middle-tier machine, wherever you use the .NET Framework.



    ad