Complex Script Support
If the computer you are using to interact with SQL Server is complex-script enabled, SQL Server can support inputting, storing, changing, and displaying complex scripts. Complex scripts include the following:
Scripts that include the combination of both right-to-left and left-to-right text, such as a combination of Arabic and English text.
Scripts whose characters change shape depending on their position, or when combined with other characters, such as Arabic, Indic, and Thai characters.
Languages such as Thai that require internal dictionaries to recognize words because there are no breaks between them.
Database applications that interact with SQL Server must use controls that support complex scripts. Standard Windows form controls that are created in managed code are complex script-enabled.