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How does a relational database work?

Contents
  1. How does a relational database work internally?
  2. How does the database work?
  3. How is a relational database created?
  4. Why would you use a relational database?
A relational database organizes data into tables which can be linked—or related—based on data common to each. This capability enables you to retrieve an entirely new table from data in one or more tables with a single query. 6 авг. 2019 г.


How does a relational database work internally?

When it needs to read data (tables or indexes), a relational database will map the disk-based pages into memory buffers. When it needs to modify data, the relational database changes the in-memory pages. To synchronize the in-memory pages with the disk, a flush must occur (e.g. fsync).

How does the database work?

A database is an organized collection of structured information, or data, typically stored electronically in a computer system. A database is usually controlled by a database management system (DBMS).

How is a relational database created?

Relational databases are created using a special computer language, structured query language (SQL), that is the standard for database interoperability. SQL is the foundation for all of the popular database applications available today, from Access to Oracle.

Why would you use a relational database?

One of the major benefits of using a Relational Database is that this type of Database allows the user to simply classify the data into different categories and store them efficiently. This arrangement can be further fetched using queries and filters.

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