Oracle to SQL

Hi...,

I had an old R/3 system on top of SQL/NT (A) and another SQL/NT server (B) is used to VB application.

Now, R/3 system (A) is migrated to Oracle/UNIX (C).

I have a lot of interface programs from R/3 on SQL/NT (A) to another SQL/NT server (B). Coding is using "EXEC SQL" syntax to read/update table on (B) directly.

Now, after migration, I tried to connect between R/3 on Oracle/UNIX (C) and SQL/NT server (B) but it didn't work.

Any idea what the problem is during migration?

Would you please to assist me how to correct it?

Thanks in advance.

kha