Data refers to facts, figures or statistics gathered for various uses, including analysis or future reference. Introduction to Database Management Systems (DBMS)īefore learning what DBMS is, we need to understand two important terms: data and database. It also explains why it is needed and how it takes place. This article takes you through important aspects regarding aggregation in DBMS. Aggregation in DBMS links trivial entities through relationships to ensure that the entire system functions well. We can do this operation through a process called aggregation. In such situations, we can combine these entities with other entities to form a complex one that makes sense. Some entities in a DBMS may have little value, which makes it difficult to use them for certain operations. Two or more entities are joined through a relationship, that is simply a way of connecting data sets. They can be people, things, objects, or places. It also offers flexibility, privacy, and data security.Ī DBMS consists of entities whose data can be stored. Database management systems (DBMS) have replaced the traditional filing system by providing an easy, secure, efficient, and reliable way of storing, retrieving, accessing, and sharing data within databases.ĭBMS is advantageous over the file system because it reduces data redundancy (through database normalization) and enhances data integrity.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |