I have seen this issue here where an application scrambles/encrypts data into a character field varchar2 but it doesn't work right when moved to another environment.
The source environment was using NLS_LANG=AMERICAN_AMERICA.WE8ISO8859P1
but the target was using NLS_LANG=AMERICAN_AMERICA.US7ASCII. Going from an 8-bit characterset to a 7-bit characterset causes problems where the byte code value should have been properly represented by 8 bits and not 7.
eg. VARCHAR2(15) field contains data ÚØÝ (dec: 218, 216, 221) comes out as U?Y when converted to US7ASCII (see SQL CONVERT function).
Another app I use here does work, but it stores the values in Hex not with the character representation.
Options:
Used 8 bit characterset on database.
Store data as hex value eg. Passwords stored in Oracle table (dba_users [sys.user$]) which is a VARCHAR2(30) field.
User RAW fields.
Converting the database characterset requires a database recreation.
David
From: "Mark Richard" <[EMAIL PROTECTED]> Reply-To: [EMAIL PROTECTED] To: Multiple recipients of list ORACLE-L <[EMAIL PROTECTED]> Subject: Character Set / Encrypted text question Date: Wed, 05 Mar 2003 19:28:46 -0800
Dear List,
I have a question for the character set guru's out there...
We are trying to store encrypted text from a Forte application into a varchar2 column in Oracle (8.1.7.4). When Forte retrieves the string a couple of the characters appear to have changed value. I assume we are experiencing some kind of character set limitation. Does anyone have any ideas about how we might work around this issue? I have included the NLS section from out init.ora section for reference.
The only workaround we can think of is converting the string to hex values and reassembling these into a long string and then storing that result. Does this sound reasonable (assuming it's not a simple character set change).
Please keep the help simple - I have never had to be concerned with character sets before and don't really understand all of the terminology.
# NLS settings nls_date_format = "DD-MON-RRRR" nls_sort = BINARY nls_language = AMERICAN nls_numeric_characters = ".,"
Thanks in advance,
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