The database is the fundamental component of database planning, storing and management. The database could be considered as a part of system development.  The consistency of data is achieved when the database is designed in the right manner to store only useful information avoiding the excess unnecessary details.

The database is the most important responsibility of the professional software designer. It is a vital part of the projects related to the database. To accomplish this, they follow the design methodology: a structure that includes procedures, tools, techniques and documentation to support the process of database design. Students who are working on the database may need database assignment help to complete the task with the quality.

 In the below blog, you will read about the main phases of creating database design.

  • Conceptual design

Once every data is stored and analyse the next thing on the list is to create a conceptual database design plan. Professionals use the high-level conceptual database model to complete the conceptual design. The result of the conceptual phase is the entry-relationship diagram which is a high model only used for the specified application area.  The entry-relationship diagram describes the how various entitles are related/ connected to each other. During the process of conceptual design, the data modelling can be used to define the high-level user operations. It also helps to confirm that conceptual schema is designed to meet all the functional requirements.

  • Logical design

The logical phase of database design is known as the logical design phase. It is a set of related schemes and the entry-relationship diagram is the base of this logical design layout. The relationship schemes is a mechanical operation but there are rules and regulations to turn entry-relationship diagram into relation schemes. In this phase of database design, the primary keys and foreign keys are defined with the logical design.

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  • Normalization

The third phase of database design is normalization which is the last part of the logical design. The actual purpose of normalization is to remove the redundancy or superfluity. The redundancy refers to an unnecessary data which is saved more than once in the database. In this situation, if the data is stored more than once then it will be definitely updated more than once which is the total waste of money and time.

Normalization is the process by which one can reduce the chances of redundancy in the database. With every normalization phase, the new relations of tables is added into the database.

  • Physical Design

The last phase of database design is physical design. In this phase, the designer chooses the database management system they are going to use to implement the database design. For instance, the different database management systems are used for different data types. Designers can use written SQL clauses to develop the database design. The indexes and integrity rules are defined in this phase. In the end, data the stored data is tested and added in the database.

The whole process of database design is not as simple as it looks. Students who are assigned with database design assignment are often struggled to explain the complicated phases of database design. In this scenario, they look for database assignment writing help. BookMyEssay is the full time writing company that offers assignment writing, homework help, case study help, essay writing and more at an affordable price.