Oracle Database 10g Developer 6i Settings For Arabic Urdu Support Work Jun 2026

The client environment bridges the gap between database encoding and desktop presentation. Developer 6i relies entirely on Windows Registry keys to determine local character behavior. how to display arabic in forms - Oracle Forums

While AMERICAN_AMERICA.UTF8 can work for some applications, Developer 6i has known limitations with Unicode character sets. For reliable Arabic/Urdu support, AR8MSWIN1256 is typically more stable and better tested with Forms 6i.

Navigate to: HKEY_LOCAL_MACHINE\SOFTWARE\ORACLE (or HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\ORACLE on 64-bit Windows). Locate the NLS_LANG string value. Modify NLS_LANG to: ARABIC_EGYPT.AR8MSWIN1256 .

To make text fields read from right to left and accept Arabic/Urdu scripts natively, modify the properties within the Forms Builder ( .fmb ). Canvas and Item Properties Open your form in .

To verify the current database character set, execute the following SQL query as SYS or SYSTEM : The client environment bridges the gap between database

SELECT * FROM nls_database_parameters; SELECT * FROM v$nls_parameters;

Select the Canvas or Window, look at the Property Palette, and set the Direction property to Right-to-Left .

Run SELECT * FROM nls_database_parameters; to check your current NLS_CHARACTERSET .

For runtime environments, you can also set NLS_LANG as an environment variable: Modify NLS_LANG to: ARABIC_EGYPT

. While standard for modern platforms, Developer 6i requires explicit configuration tweaks to cleanly render multi-byte UTF8 strings without truncating field lengths. Verifying Database Settings

AL32UTF8 (Use this if you need to store languages other than Arabic/Urdu alongside them, but be aware of possible 6i display issues).

Developer 6i does not support AL32UTF8 natively as a client character set. If the database is AL32UTF8 , the client NLS_LANG should typically be set to AR8MSWIN1256 . This forces the Oracle Net layer to perform the translation from the database Unicode to the Windows Arabic code page used by the Developer tools.

A common mistake is to assume that NLS_LANG must exactly equal the database character set. Oracle’s Globalization Support Guide explains: . Oracle will convert between them automatically. However, if you set them to incompatible character sets (e.g., WE8MSWIN1252 on the client while the database uses AR8MSWIN1256 ), Arabic/Urdu characters will be lost or corrupted during conversion. If the database is AL32UTF8

To check your existing database character set, run the following SQL command as an administrator:

Yes. The same principles apply to newer Oracle Database versions (11g, 12c) when accessed from Developer 6i. In fact, many users are exactly in this scenario: a newer database (11g/12c) running with Arabic/Urdu support, accessed by a legacy Developer 6i frontend. The key is consistent NLS_LANG configuration across all layers.

SELECT * FROM NLS_SESSION_PARAMETERS;