[Info-vax] OpenSSL CSWS-2.2-1 -- Rdb multiversion...

[Jan-Erik Söderholm]

Den 2019-04-30 kl. 17:50, skrev Stephen Hoffman:

> 
> As for OpenSSL, one of the few precedents for installing parallel 
> versions—and one of the few that works—is multi-version Rdb.  There's 
> little (no?) documentation on what's involved with that too, and it's easy 
> to get it wrong.
> 

A slightly unnecessary and mostly wrong comment.

The Install and Config Guide:

http://download.oracle.com/otndocs/products/rdb/pdf/rdb073_install_guide.pdf

has these chapters:

2.3 Overview of Multiple−Version Support in Oracle Rdb
2.4 Accessing Multiple Versions of Oracle Rdb
2.5 How Applications Access Multiple Versions of Oracle Rdb
3.14 Deleting Versions of Oracle Rdb

I have used only Rdb multiversion kits since they was introduced,
I think it was 4.1 or 4.2, and the "standard" (non-multi-version)
kit was removed from 7.1, and I have never had any issues.

One single line in the script where you start Rdb at boot and
that is the default for the whole system after that.

$ @SYS$LIBRARY:RDB$SETVER 7.3 /SYSTEM

And one line in your system wide SYLOGIN.COM (does not have to be
changed if you still want all users to use the system default):

$ @SYS$LIBRARY:RDB$SETVER RESET

For specific needs you can easily establish the right environment.

You can get *anything* wrong, but *this* is not hard to get right.