Checking to see if a variable is a DBH

Sorry, this is not a sybase-specific question, but DBI...

I'm writing a function that I want to be able to pass either a Sybase
server name or a DBI dbhandle; if the former, it will establish a
connection to the server; if the latter, it will use the extant
connection. Is there a straightforward way to check to see if the value
passed to the function is a DBH or not?

Thanks,

Steve


Steve Wechsler | [email protected]
Sybase/SQL Server Database Administrator
212-846-5683

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