Insert new data into the database contents. Delete old data. Query - whats in the content. Modify the content. Data contents definition.
Security is necessary to ensure the utility of the database.
Integrity is maintained by programming techniques which allow only values at the appropriate ranges and types to be entered in the correct field. Syncronization allows the simultaneous use of the database by multiple users. Procedural or programming techniques prevent the inadvertent alteration of database fields by multiple users. Physical data independence allows the data to be hardware independent. Accurate database manipulation and control allows for the minimization of redundency.