How to Convert a 32-bit Database to 64-bit Database on Linux?
Last updated on FEBRUARY 05, 2018
Applies to:Oracle Database - Enterprise Edition - Version 220.127.116.11 to 18.104.22.168 [Release 9.2 to 11.2]
Oracle Database - Standard Edition - Version 10.2.0.1 to 10.2.0.1 [Release 10.2]
***Checked for relevance on 29-Jun-2015***
Steps to change the wordsize of an Oracle9i Release 2 (9.2), Oracle10g or Oracle11g single instance database from Linux x86 to Linux x86-64
This document provides details for changing word size from 32bit to 64bit in same release .For example, if you have the 32-bit version of Oracle release 22.214.171.124 and you want to switch to the 64-bit version of Oracle release 126.96.36.199, then you must complete this below procedure. This document is a "cut/paste" of applicable sections from the Oracle9i Release Notes Release 2 (188.8.131.52) for Linux x86-64 (B13848-02), to quickly provide the needed details and steps to change the word-size.
* For Redhat Red Hat Enterprise Linux AS/ES 3 . Other please check Metalink>Certify section to know certified version.
If you are changing wordsize for Oracle release10.1.x/10.2.x/11.1/11.2 32-Bit to 64-bit with OLAP enabled for DB
Otherwise there could be some issues of ORA-07445 as mentioned in the later part of this document
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