It all depends on how you are exchanging with the database:
You are using "SQL type" instructions, like "INSERT INTO bla(...)", either in your code or in access queries: you'll have to check that your code is SQL-Compliant. There are many Access (or shall I say Jet?) functions like isnul() that have to be reinterpreted in SQL
You are manipulating DAO recordsets for updates, inserts and deletes. Once the recordset is open with the right SELECT instruction (see previous ...), the right connection string and the right authorisations on the server, you should be ok.