How To Upgrade From An Old Version To The Current Version?

1.	How To Upgrade From An Old Version To The Current Version?
Answer» It is recommended that you close version 1.8.x DATABASES with the SHUTDOWN command before they are opened with version 2.x. If the database is not read-only, it will be upgraded to the latest version. If you use CACHED TABLES, the procedures in the System Management and Deployment Issues section of the GUIDE should be followed. A SHUTDOWN COMPACT after the upgrade is recommended. Note that an upgrade is a one-way process, so please always keep a backup of the OLD database.

Answer»

It is recommended that you close version 1.8.x DATABASES with the SHUTDOWN command before they are opened with version 2.x. If the database is not read-only, it will be upgraded to the latest version.
If you use CACHED TABLES, the procedures in the System Management and Deployment Issues section of the GUIDE should be followed. A SHUTDOWN COMPACT after the upgrade is recommended.
Note that an upgrade is a one-way process, so please always keep a backup of the OLD database.

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