A median-priced home in Houston costs $199,300 and requires a salary of $49,983.37 to afford monthly payments of $1,166.28. San Francisco topped the list for the highest salary required to purchase a median-priced home, which costs $742,900.
A centralized database is a collection of information at a single location accessible from numerous points, in contrast with a distributed database where the information is spread out across multiple sites.
Database Normalization. Normalization is the process of removing redundant data from your tables in order to improve storage efficiency, data integrity and scalability. This improvement is balanced against an increase in complexity and potential performance losses from the joining of the normalized tables at query-time.