Database management systems are used to define the data and physical characteristics that make up the database, represented by the records and fields, the data type of each field, the permissible length, and its logical name, in addition to defining the relationships between the records that make up the database, whether in a hierarchical or network

manner.Thus, it can be said that database management systems are a group of software that provides the user with easy tools that enable him to deal th databases, such as adding, deleting, hiding, printing, searching, selecting, storing and updating data with the aim of assisting in planning and decision-making.It can be said that database management systems help achieve a set of goals affecting the main activities in the areas of automated data processing applications.