1. A computer-implemented method for converting database formats based on user data access patterns in a cloud computing environment, comprising: identifying a first set of database tables based on a set of access patterns stored in a computer storage device, the first set of database tables having a first format, and the set of access patterns indicating at least one of: a set of user data queries, insertions, updates or deletions to data stored in the first set of database tables; providing a second set of database tables having a second database format corresponding to the first set of database tables; creating a mapping between the first set of database tables and the second set of database tables; and generating a key for the second set of database tables based on at least one condition of the set of access patterns.