How upgrading existing databases can affect the choice of a Rational ClearQuest data code page

If you are upgrading to version 7.0, you might need to choose a data code page for your existing databases. If you are upgrading from a version of Rational® ClearQuest® earlier than 2003.06.00, at least one administrative client must be upgraded to Version 2003.06.02 or a later version of 2003.06.xx, before you upgrade any systems to version 7.0, to provide the necessary tools.

In the above situation, your first task is to choose a Rational ClearQuest data code page. If possible, select one that corresponds to the vendor database character set value configured for your database management system. If you select a data code page that does not correspond to the previous setting of the vendor database character set, you then have a data conversion task to perform. You must convert all the characters in the existing database that are not supported by the new Rational ClearQuest data code page to supported characters. If you do not do so, Rational ClearQuest might not be able to write the records that contain the unsupported characters back to the database during future operations, and you cannot modify these records after the data code page is set.

The amount of work required for this conversion may affect your decision about whether to make this change. If the conversion will be easy, it is better to convert the data. If the conversion will be difficult, you might want to choose another data code page.

To determine the amount of effort required to convert a database, see Running the code page utility codepageutil.


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