After you check in a schema, you can upgrade the user databases
to use the newer schema version. The changes to the schema are available
only after you upgrade the user databases.
Before you begin
Upgrading a user database is an irreversible process, so it
is wise to back up the user database before applying schema changes.
While it is not a requirement that users be logged off before you
perform a schema upgrade, it is a best practice for the following
reasons:
- When you perform a database backup, it is best to back up a stable
version of the database, meaning that the database has no activity
in progress.
- Failure of a schema upgrade while users are logged on can be more
disruptive than a planned outage.
About this task
When a user database is associated with a specific schema
version, you can apply only newer versions of the same schema to the
database. You cannot apply earlier versions or a different schema.
Procedure
To apply schema changes to a user database:
- Start the Designer.
- In the ClearQuest® Schema
Repository Explorer view, select the schema repository that contains
the updated schema.
- Click . The ClearQuest Database Admin
view opens and a list of all the user databases appears.
- Right-click the user database that you want to upgrade
and click Upgrade Database. The
Upgrade User Database window opens.
- Select a schema version from the Versions list
and click OK.