What are the benefits of using relational databases?
A relational database (RDB) is a collective set of multiple data sets organized by tables, records and columns. RDBs establish a well-defined relationship between database tables. Tables communicate and share information, which facilitates data searchability, organization and reporting.
RDBs use Structured Query Language (SQL), which is a standard user application that provides an easy programming interface for database interaction.
Relational databases are based on the relational model, an intuitive, straightforward way of representing data in tables. In a relational database, each row in the table is a record with a unique ID called the key. The columns of the table hold attributes of the data, and each record usually has a value for each attribute, making it easy to establish the relationships among data points.
Benefits of Relational Databases
If you want to design a data storage system that makes it easy to manage lots of information, and is scalable and flexible, the relational database is a good bet.
a) Manageability: for starters, an RDB is easy to manipulate. Each table of data can be updated without disrupting the others. You can also share certain sets of data with one group, but limit their access to others – such as confidential information about employees.
b) Flexibility: if you need to update your data, you only have to do it once – so no more having to change multiple files one at a time. And it’s pretty simple to extend your database. If your records are growing, a relational database is easily scalable to grow with your data.
c) Avoid Errors: there’s no room for mistakes in a relational database because it’s easy to check for mistakes against the data in other parts of the records. And since each piece of information is stored at a single point, you don’t have the problem of old versions of data clouding the picture.
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