This document compares the features of Microsoft Access, MySQL, and Oracle databases. It provides a table listing each database's licensing, supported data schemas and types, SQL support, XML support, consistency concepts, replication methods, durability, supported languages, and APIs. It then ranks the databases from best to worst (Oracle #1, MySQL #2, Access #3) based on their features. The document recommends Oracle for its most features but acknowledges it is expensive, and suggests MySQL as a free alternative or Access for beginners due to its ease of use.