in reply to Converting datetime formats
I assume you know how to get information from the database using DBD::ODBC or some equivalent mechanism. If not, ask that question specifically.
For converting dates between formats, I normally use DateTime and the various modules in the DateTime::Format:: namespace. However, I have not yet found one that exactly implements the datetime format of MS SQL Server. (That doesn't necessarily mean there isn't one; only that I haven't found one.) It's similar to the MySQL datetime format, but not identical. So I ended up rolling my own function using sprintf. I don't have it here (at home), because I don't have MS SQL Server here, only at work. At home I use mostly MySQL, though I keep meaning to get into Postgres.