VMS Help  —  RMU72  Convert  Command Qualifiers

1  –  Commit

    Commit
    Nocommit

    Makes the database conversion permanent. When you specify the
    Commit qualifier, the database is converted to an Oracle Rdb
    release 7.2 database and cannot be returned to the previous
    version. The default is Commit.

    When you specify the Nocommit qualifier, you can convert the
    database to Oracle Rdb release 7.2 and roll it back to the
    previous version at a later time.

    Using the Nocommit qualifier is helpful when you want to test
    your applications against a new version of Oracle Rdb. In the
    event that you find problems, you can roll back to the previous
    version. Once you feel confident that your applications work well
    with the new version, you should commit the converted database,
    otherwise unnecessary space is taken up in the database to store
    the obsolete alternate version of the metadata.

2  –  Confirm

    Confirm
    Noconfirm

    Requests user input during the conversion procedure. When you
    specify the Confirm qualifier, Oracle RMU asks if you are
    satisfied with your database and aij backup files. If the
    database being converted has after-image journaling enabled,
    Oracle RMU asks if you want to continue and states that after-
    image journaling will be temporarily disabled.

3  –  Path

    Path

    Identifies that the database is being specified by its data
    dictionary path name instead of its file specification. The Path
    qualifier is a positional qualifier.

4  –  Prefix Collection

    Prefix_Collection=option

    When you convert a database to release 7.2 from a release
    of Oracle Rdb prior to release 7.0, you can use the Prefix_
    Collection qualifier to specify that sorted index prefix
    cardinality collection be Enabled, Enabled Full, or Disabled
    for all sysem and user sorted indexes.

    The following options are available for use with the Prefix_
    Collection qualifier:

    o  Disabled

       Specifies that index prefix cardinality collection is to be
       disabled.

    o  Enabled

       Specifies that default collection is performed. The Oracle
       Rdb optimizer collects approximate cardinality values for the
       index columns to help in future query optimization.

       Enabled Estimate

       Specifies that prefix cardinality values for all indexes are
       to be estimated.

    o  Enabled Collect

       Specifies that prefix cardinality values for all indexes are
       to be collected by calling the RMU Collect command.

    o  Full Requests that extra I/O be performed, if required, to
       ensure that the cardinality values reflect the key value
       changes of adjacent index nodes.

    o  Full=Estimate

       Specifies that prefix cardinality values for all indexes are
       to be estimated.

    o  Full=Collect

       Specifies that prefix cardinality values for all indexes are
       to be collected by calling the RMU Collect command.

5  –  Reserve

    Reserve=(Area=n,Aij=n)

    Reserves space in the database root file for storage areas or
    .aij files, or both. Replace the character n with the number of
    storage areas or .aij files for which you want to reserve space.

    Note that you cannot reserve areas for a single-file database.
    You can reserve .aij files for a single-file database, but once
    the database is converted, you cannot alter that reservation
    unless you backup and restore the database.

    This qualifier is useful if, when you are converting your
    database, you anticipate the need for additional storage areas
    or .aij files. Because the addition of new storage areas or .aij
    files requires that users not be attached to the database, adding
    them while the database is being converted minimizes the time
    that the database is inaccessible to users.

    By default, one .aij file and no storage area files are reserved.

6  –  Rollback

    Rollback
    Norollback

    Returns a database that has been converted to an Oracle Rdb
    release 7.2 database (but not committed) to the previous version.
    You might decide to return to the previous version of the
    database for technical, performance, or business reasons.

    The Norollback qualifier prevents you from returning your
    converted database to the previous version. The default is the
    Norollback qualifier.

    If you specify both the Nocommit qualifier and the Rollback
    qualifier in the same RMU Convert command, your database is
    converted to Oracle Rdb release 7.2 and immediately rolled back
    to the previous version when the RMU Convert command is executed.

    This qualifier is valid only if you are converting from one of
    the following releases: 7.0 or 7.1.
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