SQL/MX 2.3.x to SQL/MX 3.0 Database and Application Migration Guide (H06.22+, J06.11+)

HP NonStop SQL/MX 2.3.x to SQL/MX 3.0 Database and Application Migration Guide—666210-002
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Falling Back to SQL/MX Release 2.x
This section describes falling back from SQL/MX Release 3.0 to SQL/MX Release 2.x.
You can fall back from SQL/MX Release 3.0 to SQL/MX Release 2.3.4 directly. If you
want to fall back to a version earlier than SQL/MX Release 2.3.4, such as SQL/MX
Release 2.2, you must first fall back to SQL/MX Release 2.3.4 and then to the required
SQL/MX 2.x version.
This section addresses these topics:

Fallback sequence

Fallback Considerations

Preinstallation

Installing SQL/MX Release 2.3.4

Accessing the Database

Installing SQL/MX 2.x

Migrating Applications after System Fallback

Changes Required After Falling Back
Fallback sequence
Based on your requirements, you must fallback in one of the following ways:

If you have not upgraded the metadata to SQL/MX Release 3.0 and have not
created any new databases, you must fall back as shown in Figure 5-1
.
Note. When using new features, if you encounter a problem that is specific to SQL/MX
Release 3.0, discontinue the use of those features instead of falling back from that database
environment.