Why upgrading from Oracle 8i to Oracle 9i?

Hi,
The company I work in is evaluating whether upgrading from 8i to 9i of Oracle database. Apart from the fact that it's always usefull and reasonable to upgrade towards the latest versions, it seems to me that the main features of version 9i are with reference to the data warehouse management that where I work we don't use. From the viewpoint of PL/SQL are there particular differences between 8i and 9i? In other words I have to point out important reasons for justifying the upgrade? Thanks!

Both versions are already de-supported. Other than taking advantage of new features that newer versions of database software provide, it is necessary to keep pace with upgrades so as to stay in support and continue to get security fixes/patches. Each new version has a "New Features" guide that lists the new features as compared to the previous release.
9iR1 New Features - http://download.oracle.com/docs/cd/A91202_01/901_doc/server.901/a90120/toc.htm
9iR2 New Features - http://download.oracle.com/docs/cd/B10501_01/server.920/a96531/toc.htm
10gR1 New Features - http://download.oracle.com/docs/cd/B14117_01/server.101/b10750/toc.htm
10gR2 New Features - http://download.oracle.com/docs/cd/B19306_01/server.102/b14214/toc.htm
11gR1 New Features - http://download.oracle.com/docs/cd/B28359_01/server.111/b28279/toc.htm
11gR2 New Features - http://download.oracle.com/docs/cd/E11882_01/server.112/e10881/toc.htm
http://www.oracle.com/support/lifetime-support-policy.html?origref=http://www.oracle.com/us/support/index.html
HTH
Srini

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>
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>
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