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

This is the most important step.

Go to:
System Properties → Advanced → Environment Variables → System variables → New

| Variable | Value | |---|---| | NLS_LANG | ARABIC_EGYPT.AR8MSWIN1256 | This is the most important step

Other valid values:

If generating PDFs results in "??????":

Before diving into the "how," it is crucial to understand the "why."

The Golden Rule: If your Database character set is AL32UTF8, Developer 6i will have trouble reading the data directly. You often have to choose a specific Arabic character set (like AR8MSWIN1256) or configure the environment to handle the conversion seamlessly. The Golden Rule: If your Database character set

Never mix Left-to-Right (English) and RTL text in one field without the Unicode RTL mark (U+200F).
In PL/SQL:

:block.full_name := 'شركة' || CHR(8207) || 'ABC Corp';
-- 8207 = U+200F (Right-to-Left mark)

Before tweaking settings, you must understand the difference between single-byte and multi-byte encodings. Never mix Left-to-Right (English) and RTL text in