Re: Converting database from US7ASCII to UTF8

dbaplusplus_at_hotmail.com wrote:
> I am on HP UNIX 11i using Oracle 9.2.0.5.
>
> I had a database in database character set US7ASCII. I recently
> converted it to database character set UTF8. Since I do not have any
> nchar or nvarchar2 columns, national character set is irrelevant even
> though it was UTF8 to begin with.
>
> Export was done using NLS_LANG=AMERICAN_AMERICA.US7ASCII and same
> setting was used for import.
>
> During import some rows got rejected because column lengths of some
> varchar2 column will not fit UTF8 chacater set. I know UTF8 needs more
> bytes if character is outside of ASCII. My question is since I had
> US7ASCII database to begin with, why my rows got rejected, since UTF8
> is a superset
> of US7ASCII.
>
> Looking at failed rows generated during import, I did notice that some
> rows had characters such as Ö (O with two .. on top), R with a
> trademark on top of it. If my database character set was ASCII, how
> this character was inserted in the first place. What is the meaning of
> US7ASCII if my database had these characters.
> All columns with error are varchar2 columns.
>
> Appreciate your insight.
>
> Thanks a lot.

Does any one hae insight in this? Apprecaite your answer. Received on Mon Dec 12 2005 - 12:22:27 CST