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

Configuring Oracle Database 10g and Developer 6i to support right-to-left languages like Arabic and Urdu requires careful synchronization between the database, the middleware, and the client operating system. Because Developer 6i is a legacy tool, it relies heavily on environment variables rather than modern Unicode auto-detection. Understanding the Core Components

To achieve proper rendering of Arabic and Urdu characters, you must align three specific layers:

The Database Character Set: The storage layer must support the characters.

The NLS_LANG Environment Variable: The "translator" between the client and server. The Client Operating System: Regional settings and fonts. Phase 1: Database Level Configuration

Before the application can display data, the database must be able to store it. For Oracle 10g, the recommended character sets for Arabic and Urdu are:

AR8MSWIN1256: Specifically for Windows-based Arabic support.

UTF8 / AL32UTF8: Universal support (preferred for Urdu which requires specific extended characters).

You can check your current database character set by running:SELECT * FROM NLS_DATABASE_PARAMETERS WHERE PARAMETER = 'NLS_CHARACTERSET'; Phase 2: Configuring NLS_LANG Settings

The NLS_LANG parameter is the most critical setting. It tells the Developer 6i runtime how to encode and decode data sent to the database. This must be set in the Windows Registry of the client machine. Open the Registry Editor (regedit).

Navigate to HKEY_LOCAL_MACHINE\SOFTWARE\ORACLE (or HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\ORACLE on 64-bit systems).

Locate the Oracle Home used by Developer 6i (usually HOME0). Modify or create the String Value NLS_LANG. Recommended Values: For Arabic: ARABIC_UNITED ARAB EMIRATES.AR8MSWIN1256

For Urdu: ENGLISH_UNITED KINGDOM.AL32UTF8 (Note: Developer 6i has limited UTF8 support; if issues occur, use ARABIC_PAKISTAN.AR8MSWIN1256). Phase 3: Developer 6i Forms and Reports Settings Configuring Oracle Database 10g and Developer 6i to

Even with the correct registry settings, the UI components need to be told to behave in a Right-to-Left (RTL) manner. Forms Runtime Settings

Direction Property: In Oracle Forms Builder, set the "Direction" property of your Canvas or Windows to Right-to-Left.

Reading Order: Set the "Reading Order" for text items to Right-to-Left.

Character Set Property: Ensure the font used (e.g., Arial, Tahoma, or Courier New) is a TrueType font that supports the Arabic script. Reports Builder Settings

UI_ICON: Set the environment variable UI_ICON if custom icons are used, but more importantly, ensure the REPORTS_PATH includes the folders where your Urdu/Arabic fonts are located.

PDF Generation: If generating PDFs, you must modify the uafont.txt file in the Oracle Home to map fonts like "Courier New" to their CID equivalents to prevent "garbage" characters. Phase 4: Windows Operating System Requirements

The host machine running the 6i Runtime needs the underlying language files. Go to Control Panel > Regional and Language Options.

In the "Languages" tab, check "Install files for complex script and right-to-left languages".

In the "Advanced" tab, set the Language for non-Unicode programs to "Arabic" or "Urdu". This is vital because Developer 6i is a non-Unicode legacy application. Troubleshooting Common Issues

Reversed Characters: If letters appear disconnected or reversed, it is almost always an NLS_LANG mismatch between the registry and the database.

Question Marks (???): This indicates the character set in NLS_LANG cannot translate the data coming from the database. Ensure you are using AR8MSWIN1256. Keyboard Mode = Arabic (if available) or Native

Square Boxes: This is a font issue. The selected font in the Form/Report does not contain the glyphs for Arabic or Urdu.

The fluorescent lights of the IT department hummed, a stark contrast to the quiet tension in the room. Omar, a veteran developer, stared at his monitor. He was tasked with a critical mission: migrating a legacy Urdu and Arabic reporting system to an Oracle 10g database using

The challenge wasn't just the code; it was the "ghost characters"—those dreaded question marks that appeared whenever someone typed in a right-to-left language.

"It’s all about the environment, not just the code," Omar muttered, opening the Windows Registry. He knew that for Developer 6i to talk to in Arabic or Urdu, the setting was the secret handshake. He navigated to HKEY_LOCAL_MACHINE\SOFTWARE\ORACLE and set the value to ARABIC_UNITED ARAB EMIRATES.AR8MSWIN1256

Next, he tackled the database itself. He ensured the 10g instance was created with a compatible character set, like AR8MSWIN1256 , to act as the perfect vessel for the script.

The final hurdle was the UI. In the Forms 6i Builder, he meticulously changed the Reading Order

property to 'Right-to-Left' and selected a font that actually supported the glyphs, like 'Traditional Arabic'.

He hit 'Run'. He typed "السلام عليكم" (Peace be upon you) into the field. The characters flowed beautifully from right to left, crisp and clear. The "ghosts" were gone. Omar leaned back, the hum of the lights now sounding like a victory song. on the specific Environment variables used in this setup?

Configuring Oracle Database 10g and Developer 6i for Arabic and Urdu support requires aligning the Character Set

across the database, the client registry, and the operating system. Oracle Forums 1. Database Character Set Configuration

To store and retrieve Arabic or Urdu characters without them turning into question marks, the database must use a compatible character set. Oracle Forums Writing Urdu or Arabic in Oracle Forms 6i 1) Character set selection (database)

In (Win95/NT/2000 client ) by using the blow details . Title : NLS Setting for Oracle Environment: ------------------------------- Oracle Forums how to change Default language? - Oracle Forums

Configuring Oracle Database 10g Developer 6i for Arabic and Urdu requires synchronizing character sets across the database, the client registry, and the operating system. 1. Database Character Set Configuration For a database to store Right-to-Left (RTL) characters, its NLS_CHARACTERSET must support them. Best Options: AR8MSWIN1256 (8-bit Arabic/Urdu) for efficiency or for universal support.

In Forms 6i, use the specific "UTF8" charset name rather than the newer "AL32UTF8". How to Check:

SELECT * FROM nls_database_parameters WHERE parameter='NLS_CHARACTERSET'; Changing Settings:

If the database is already created with a Western charset (like WE8MSWIN1252 ), you may need to use ALTER DATABASE CHARACTER SET INTERNAL_USE AR8MSWIN1256; (requires SYSDBA privileges and restricted mode). 2. Client-Side Registry (Developer 6i)

The Developer 6i client needs to know which character set to use when communicating with the database. Registry Path: and navigate to HKEY_LOCAL_MACHINE\SOFTWARE\ORACLE Setting NLS_LANG: Modify the value to match the database. Recommended Value: AMERICAN_AMERICA.AR8MSWIN1256 ARABIC_SAUDI ARABIA.AR8MSWIN1256 AMERICAN_AMERICA

as the first part keeps the developer interface in English while supporting Arabic/Urdu data entry. 3. Operating System Settings

The Windows OS must be configured to handle non-Unicode applications for these languages. System Locale: Control Panel Region and Language Administrative Change system locale . Set this to and restart. Input Language:

Ensure the Arabic or Urdu keyboard is added to the language bar so users can toggle between English and RTL input. 4. Forms 6i Property Settings To ensure proper visual display within your application: Writing Urdu or Arabic in Oracle Forms 6i

Text Item Properties

Keyboard Mode = Arabic (if available) or Native
Justification = Right
Case Restriction = Mixed (to allow Arabic diacritics)

1) Character set selection (database)

Use a Unicode character set—preferably AL32UTF8. If creating a new database:
- CREATE DATABASE ... CHARACTER SET AL32UTF8;
If the DB already exists and is not Unicode, plan a character-set conversion using Data Pump export/import or RMAN/transportable methods; do NOT use ALTER DATABASE CHARACTER SET for non‑trivial conversions.

4.2 Display in Forms

Set text item’s Font property to a compatible Arabic-script font.
Case restriction: Do not use UPPER/LOWER on Arabic/Urdu text – it corrupts.
Concatenation: Use || carefully; no NLS issues with AR8MSWIN1256.

3. Developer 6i Client Configuration

4. Forms Developer (Design Time) Settings

Correct data storage is insufficient without correct visual rendering. Developer 6i Forms require specific property changes at the Item and Canvas levels.

6. Testing Checklist

[ ] Database NLS_CHARACTERSET is AR8MSWIN1256 or AL32UTF8
[ ] Windows system locale set to Arabic
[ ] NLS_LANG environment variable = ARABIC_EGYPT.AR8MSWIN1256
[ ] Arabic/Urdu fonts installed and selected in form item
[ ] Item justification = Right, Orientation = Right-to-Left
[ ] Can type السلام عليكم and save/retrieve correctly
[ ] Urdu sample آپ کیسے ہیں؟ displays and saves without truncation

6. Verification Checklist

| Component | Setting | Status | |-----------|---------|--------| | Database character set | AR8MSWIN1256 or AL32UTF8 | ☐ | | NLS_LANG client | ARABIC_EGYPT.AR8MSWIN1256 | ☐ | | Windows OS language pack | Arabic/Urdu installed | ☐ | | Forms property Right To Left | Yes | ☐ | | Text item font | Arial / Tahoma | ☐ | | Test insert & select | Shows correct text | ☐ | | Printing (Report) | RTL + correct font | ☐ |