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

Configuring Oracle Database 10g and Developer 6i to support bidirectional languages like Arabic and Urdu requires aligning settings across the database, client registry, and operating system. 1. Database Character Set Configuration

• AR8MSWIN1256: 8-bit Arabic character set (supports basic Arabic, limited Urdu support). Suitable for legacy systems.
• AL32UTF8: Unicode 3.0+ (supports Arabic, Urdu, Persian, and all modern scripts). Preferred for Urdu because it includes characters like ے (Bari Yeh), ں (Noon Ghunna), and ڑ (Arrain).
• AR8ISO8859P6: Older ISO standard (not recommended).
• WE8ISO8859P1: Western European (will corrupt Arabic/Urdu completely). Avoid.

For Urdu (if supported on OS):

Step 2: Registry Configuration (Critical)

Navigate to (for Developer 6i on Windows 10/7/XP): Configuring Oracle Database 10g and Developer 6i to

2. National Character Set: Set the national character set to NCHAR_CS to support Unicode characters.

Step 4: Column Definitions for Urdu Text

When creating tables for Urdu documents or names, always use NCLOB or NVARCHAR2: AR8MSWIN1256 : 8-bit Arabic character set (supports basic

4.3 Display Issues (Garbled Text – “????” or boxes)

If you see ???? or squares:

INSERT INTO employees (id, full_name) VALUES (1, N'أحمد محمد');