Question

What are some of the advantages of a relational database system?

Answer 1

1. Simple Model: A Relational Database system is the most simple model, as it does not require any complex structuring or querying processes. It doesn’t involve tedious architectural processes like hierarchical database structuring or definition. As the structure is simple, it is sufficient to be handled with simple SQL queries and does not require complex queries to be designed.

2. Data Accuracy: In the relational database system, there can be multiple tables related to one another with the use of a primary key and foreign key concepts. This makes the data to be non-repetitive. There is no chance for duplication of data. Hence the accuracy of data in the relational database is more than any other database system.

3. Easy Access to Data: In the Relational Database System, there is no pattern or pathway for accessing the data, as to another type of databases can be accessed only by navigating through a tree or a hierarchical model. Anyone who accesses the data can query any table in the relational database. Using join queries and conditional statements one can combine all or any number of related tables in order to fetch the required data. Resulting data can be modified based on the values from any column, on any number of columns, which permits the user to effortlessly recover the relevant data as the result. It allows one to pick on the desired columns to be incorporated in the outcome so that only appropriate data will be displayed.

4. Data Integrity: Data integrity is a crucial characteristic of the Relational Database system. Sturdy Data entries and legitimacy validations ensure that all the Data in the database confines within suitable arrangements and the data necessary for creating the relationships are present. This relational reliability amongst the tables in the database helps in avoiding the records from being imperfect, isolated or unrelated. Data integrity aids in making sure of the relational database’s other significant characteristics like Ease of use, precision, and stability of the data.

5. Flexibility: A Relational Database system by itself possesses qualities for leveling up, expanding for bigger lengths, as it is endowed with a bendable structure to accommodate the constantly shifting requirements. This facilitates the increasing incoming amount of data, as well as the update and deletes wherever required. This model consents to the changes made to a database configuration as well, which can be applied without difficulty devoid of crashing the data or the other parts of the database.

A Data Analyst can insert, update or delete tables, columns or individual data in the given database system promptly and easily, in order to meet the business needs. There is supposedly no boundary on the number of rows, columns or tables a relational database can hold. In any practical application, development and transformation are restricted by the Relational Database Management System and the hardware contained by the servers. So these changes can create an alteration in other peripheral functional devices connected to the particular relational database system.

6. Normalization: The methodical style is maintained for making sure of a relational database structure is liberated of any variances that can make a difference in the integrity and accuracy of the tables in the database. A normalization process provides a set of regulations, characteristics, and purposes for the database structure and evaluation of a relational database model. Normalization aims at illustrating multiple levels of breaking down the data. Any level of normalization is expected to be accomplished on the same level, that is, before moving ahead to the next levels. A relational database model is usually confirmed to be normalized, only when it satisfies the necessary conditions of the third normalization form. Normalization offers an impression of reassurance on the database plan, to be extra strong and reliable.

7. High Security: As the data is divided amongst the tables of the relational database system, it is possible to make a few tables to be tagged as confidential and others not. This segregation is easily implemented with a relational database management system, unlike other databases. When a data analyst tries to login with a username and password, the database can set boundaries for their level of access, by providing admission only to the tables that they are allowed to work on, depending on their access level.

8. Feasible for Future Modifications: As the relational database system holds records in separate tables based on their categories, it is straightforward to insert, delete or update records that are subjected to the latest requirements. This feature of the relational database model tolerates the newest requirements that are presented by the business. Any number of new or existing tables or columns of data can be inserted or modified depending on the conditions provided, by keeping up with the basic qualities of the relational database management system.

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