Database question while Migrating from one domain to another on same WebHost [Bluehost]

If your server is not changed, you don’t need to do something with your database. Just leave it as it is.

Additionally I would like to recommend you to read Moving WordPress article from the codex. You will find all answers on your questions about migration.

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)