OWB-Import does not distinguish between nls_length_semantics char and byte.

We have a 10g-DB with UTF8 charset and nls_length_semantics=char and we've created an OWB warehouse module for 10g with several tables in it. After deploy operation for a table the column length attributs are looking nice. But if we re-import this table the varchar fields have the threefold length!
This makes life hard for us, because sometimes it's necessary to reconcile discrepancies in development cycle and some tables have about 150 columns.
Does anybody have suggestions?
The OWB version is 10.1.0.3.0.
Regards
Ralf

Ralf,
Oracle stores the length of VARCHAR columns in two ways in its metadata. One is the length as required by the application, and the other is the length required to store UTF data.
One UTF character can take upto 3 characters of storage. When OWB reads in the definition from data dictionary, it uses the actual characters allocated to the column, and thus u see a three fold increase in VARCHAR columns.
Try this for your table
select
column_name, data_length, char_length
from
user_tab_columns
where
table_name='nameOfTable'
And that is how Oracle designed the database, but unfortunately OWB does not have that twin way of seeing things.
- Jojo

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