SQL Transform use varchar but not nvarchar

Hi all,

I am using DB2 as source database, local repository and I am using DS4.1 SP5.

I have some data is Chinese characters and I store those data with datatype vargraphic in database.

When I select those data in a SQL transform, the SAP Data Services automatically create a temporary table with "varchar" instead of "nvarchar".

As a result, the job fail because varchar is not compatible to vargraphic for Chinese characters.

There is a "Use NVARCHAR for VARCHAR columns in supported databases" option for temporary tables.

However there is not this option in SQL transform.

How can I fix the issues?

Regards,

Gordon Lo