I have Toad version 22.214.171.124. I created a conceptual schema of the database. After that, I converted this scheme to the logical database schema for mssql 2008. Next, I made the verification and found that I have no errors. I generated DDL script. Unfortunately, the script did not contain the sql to create foreign keys. Another sql code was generated correctly. Note, I checked “relationships” in options.
P.S. I generated like sql code by Toad 4. Previously this function worked.