Oracle A423961 - Manual (Page 50)

2 – 24 Oracle7 Server Getting Started for Windows NT
2. Choose Remove.
Oracle Installer warns you of any product dependencies that might
cause problems if particular products are removed, and prompts you
to confirm the de–installation.
Migrating from Earlier Releases
This section contains instructions for migrating databases created using
earlier versions of Oracle7 Server for Windows NT. If you currently
have data stored in one of the following:
• Oracle7 Server for Windows NT database, Versions 7.0, 7.1, or
7.2
OR
• Oracle7 Workgroup Server for Windows NT, Versions 7.0, 7.1, or
7.2,
you must migrate your database to make it work with Oracle7 Server
for Windows NT. This section describes procedures for migrating your
earlier Oracle7 Server version(s) to Release 7.3.
Overview
Use this procedure for migrating earlier Oracle7 Server versions to
Release 7.3. It includes the following tasks and example:
• preparing for migration
• installing the Oracle7 Server for Windows NT
• moving database files
Prepare for the Migration
Before migrating to Release 7.3, make sure you have at least 8MB of
free space in the system tablespace You can verify the amount of free
space in the SYSTEM tablespace using this SQL statement :
select sum(A.blocks * B.value) from sys.dba_free_space A,
sys.V$parameter B where A.tablespace_name = ’SYSTEM’ and
B.value = ’db_block_size’ ;
If 8MB of free space is not available in the SYSTEM tablespace, you can
enlarge the SYSTEM tablespace by adding a datafile of the appropriate