Skip to main content

By clicking Submit, you agree to the developerWorks terms of use.

The first time you sign into developerWorks, a profile is created for you. Select information in your developerWorks profile is displayed to the public, but you may edit the information at any time. Your first name, last name (unless you choose to hide them), and display name will accompany the content that you post.

All information submitted is secure.

  • Close [x]

The first time you sign in to developerWorks, a profile is created for you, so you need to choose a display name. Your display name accompanies the content you post on developerworks.

Please choose a display name between 3-31 characters. Your display name must be unique in the developerWorks community and should not be your email address for privacy reasons.

By clicking Submit, you agree to the developerWorks terms of use.

All information submitted is secure.

  • Close [x]

DB2 for Linux, UNIX, and Windows V9.5 Application Porting Guide

Summary:  IBM DB2 Database for Linux, UNIX, and Windows Version 9.5 introduces a number of features that greatly simplify the task of migrating applications from other relational database vendors to DB2. These features are described in this document.

Date:  29 Nov 2007
Level:  Introductory

Activity:  1213 views
Comments:  

IBM® DB2® Database for Linux®, UNIX®, and Windows® Version 9.5 introduces a number of features that greatly simplify the task of migrating applications from other relational database vendors to DB2. These features are described in this document.

Introduction

The Application Porting Guide includes information on the following topics:

  • Features that are enabled by default, such as the new scalar functions BITAND, BITANDNOT, BITOR, BITXOR, BITNOT, DECODE, EMPTY_BLOB, EMPTY_CLOB, EMPTY_DBCLOB, GREATEST, LEAST, and NVL; improvements to the TO_DATE and TO_CHAR scalar functions; the lifting of several SQL language restrictions; synonyms for the proprietary syntax of other RDBMS vendors; global variables; an ARRAY collection data type; and increased identifier length limits.
  • Features that can be selectively enabled by setting a new DB2 registry variable named DB2_COMPATIBILITY_VECTOR. These features include an Oracle-compatible implementation of hierarchical queries using CONNECT BY PRIOR syntax; support for the outer join operator, (+); syntax and semantics to support the NUMBER data type and the VARCHAR2 data type; a pseudocolumn named ROWNUM that is allowed in the SELECT LIST and in the WHERE clause; and a dummy table named DUAL that provides a capability that is similar to SYSIBM.SYSDUMMY1.

Download

DescriptionNameSizeDownload method
Document in PDF formatApplPortGuide.pdf495KBHTTP

Information about download methods          Get Adobe® Reader®


Resources

Learn

Get products and technologies

  • Download a free trial version of DB2 Enterprise 9.

  • Now you can use DB2 for free. Download DB2 Express-C, a no-charge version of DB2 Express Edition for the community that offers the same core data features as DB2 Express Edtion and provides a solid base to build and deploy applications.

  • Download IBM product evaluation versions and get your hands on application development tools and middleware products from DB2, Lotus®, Rational®, Tivoli®, and WebSphere®.

Discuss

Comments



Help: Update or add to My dW interests

What's this?

This little timesaver lets you update your My developerWorks profile with just one click! The general subject of this content (AIX and UNIX, Information Management, Lotus, Rational, Tivoli, WebSphere, Java, Linux, Open source, SOA and Web services, Web development, or XML) will be added to the interests section of your profile, if it's not there already. You only need to be logged in to My developerWorks.

And what's the point of adding your interests to your profile? That's how you find other users with the same interests as yours, and see what they're reading and contributing to the community. Your interests also help us recommend relevant developerWorks content to you.

View your My developerWorks profile

Return from help

Help: Remove from My dW interests

What's this?

Removing this interest does not alter your profile, but rather removes this piece of content from a list of all content for which you've indicated interest. In a future enhancement to My developerWorks, you'll be able to see a record of that content.

View your My developerWorks profile

Return from help

static.content.url=http://www.ibm.com/developerworks/js/artrating/
SITE_ID=1
Zone=Information Management
ArticleID=271619
SummaryTitle=DB2 for Linux, UNIX, and Windows V9.5 Application Porting Guide
publish-date=11292007