arabic words are unreadable in my oracle database

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Hi every one
i have an oracle database and when i put some of the Arabic words in some of the tables it's appear unreadable like this ' ¿¿¿¿ ¿¿¿¿ ¿¿¿' , BTW I'm already using UTF8 capable front end .. so any advise will be helpful .

Best regards
Ahmed

Posted 24-Nov-11 1:05am

Ahmed k dema

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Amir Mahfoozi 25-Nov-11 4:17am

Have you used NVarchar2 data type ? I think just your field data type is important.

3 solutions

Solution 1

You possibly will have to set the NLS_LANG value for the client session.

Posted 24-Nov-11 9:39am

Chris Meech

Solution 2

As have already been mentioned you need to use nvarchar2 or nclob as datatype in the tables.
If you enter the data into the database directly in the DML you will need to prefix your strings with an N. But to do it in DML is not recommended as you open up yourself to "sql injection".
Instead you should use parameters where you can set the OracleDBType accordingly.

Posted 25-Nov-11 12:26pm

Jörgen Andersson

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Ahmed k dema · Accepted Answer · 2011-11-29T22:12:00

these are the steps for the answer , i do it yesterday and it's finally works :D :-

1-Open registry editor, then find Nls_Lang and change its value to AMERICAN_AMERICA.AR8MSWIN1256 (you will find this more than once so change them all) ,
Change the value of HKey_Local_Machine\System\CurrentControlSet\Control\NLS\CodePage\ ACP to 1256
Find (Presentation LCID) in the registry and change it dec=1033 or hex=409 (you may find this more than once so change them all)
2- Change the regional setting, Regional Option (Location to ****), (Language to English United States), Add Arabic Keyboard (****).

Best regards
Ahmed K Dema
Iraq