Run SELECT * FROM nls_database_parameters; to verify.
Change Windows System Locale to Arabic/Urdu and restart. Use Tahoma/Arial fonts. Form/Canvas direction property is wrong.
For testing or batch scripts, you can also set NLS_LANG as a system or user environment variable, or from a command prompt: Run SELECT * FROM nls_database_parameters; to verify
: The application or database character set does not support Arabic script. Verify database character set using SELECT * FROM nls_database_parameters . If NLS_CHARACTERSET is US7ASCII , WE8MSWIN1252 , or another non-Arabic character set, you must either migrate the database to AR8MSWIN1256 or use NVARCHAR2 columns with Unicode support.
If you are starting a new database for legacy Developer 6i applications, choose AR8MSWIN1256 – it is the character set that most existing “Arabic/Urdu support” walkthroughs assume, and it has been proven to work with Developer 6i’s limitations. If you already have a Unicode database (AL32UTF8) and are encountering display issues, you can still make it work, but expect additional configuration steps. Form/Canvas direction property is wrong
Open regedit and navigate to:
Configuring an enterprise environment using and the legacy Oracle Developer 6i (Forms and Reports) to support bidirectional (BIDI) and Right-to-Left (RTL) languages like Arabic and Urdu requires meticulous alignment across three tiers: the database instance, the client operating system registry, and the Developer 6i application layouts. Misconfigurations at any level will result in corrupted data storage, string inversion, or the dreaded "junk character" (question marks or random symbols) display. 1. Database Tier Configuration (Oracle Database 10g) If NLS_CHARACTERSET is US7ASCII , WE8MSWIN1252 , or
: This typically indicates a mismatch between the database character set and the Forms NLS_LANG setting. Ensure that the character set portion of NLS_LANG matches the database character set exactly. Also verify font mapping in UIFONT.ALI .