A DBA will need to make many different types of changes to a database over its lifetime. Some will be simple and easy to implement, others much more difficult and complex. Many types of database ...

Things break and the DBA must be prepared for situations where a failure impacts the availability, integrity, or usability of a database. Reacting to failures and service disruptions is a key ...

Any data that does not fall into the traditional field structure (alpha, numeric, dates) of a relational DBMS. Examples of complex data types are bills of materials, word processing documents, maps, ...