A relational database allows for the use of data from multiple tables by utilizing relationships to avoid duplicating data, saving memory and disk space while increasing execution speed and making it easier for users to work. Microsoft Access 2010 was studied to replace tools like Excel for a more straightforward management of Microsoft tools. The document introduces relational databases, Access 2010 concepts like tables, queries, forms, reports, and macros to organize, manage, and account for data in areas like business and enterprise management.