Re: Test::Database and Test::DSN

For actual or intended Test::Database use cases that you know about, which of 
these situations are represented:

1. The test requires the actual DBMS used in production, it is designed with 
only a single specific DBMS in mind, no substitutions allowed.

2. Like #1 except substitutions are allowed if the substitute is compatible for 
all the DBMS syntax/capabilities used.

3. The test will work with a variety of DBMS and works to least common denominator.

4. The test will work with a variety of DBMS and will do different things 
depending on which DBMS is in use as it recognizes their different syntax or 
capabilities.

5. Some other option?

Thanks in advance for the info.

-- Darren Duncan