Write about your understanding of databases and database advantages and write about database concepts such as primary and foreign keys.

Hasibul khan

 What is a database?

A database is information configured for easy access, management, and updating. Computer databases typically store aggregations of data records or files that contain information, such as sales transactions, customer data, financial data, and product information. Databases are used to store, maintain and access any type of data. They collect information about people, places, or things. This information is collected in one place so that it can be observed and analyzed. Databases can be thought of as an organized collection of information. (Lutkevich & Hughes, 2023)

(Mabli, 2017)


Fantastico! Sembra che tu abbia un'idea chiara degli argomenti che desideri approfondire e sui quali desideri saperne di più. I database e le loro applicazioni in numerosi settori coprono una vasta gamma di problemi. La progettazione e la gestione di database, l'analisi e la visualizzazione dei dati, la sicurezza e la privacy dei dati e l'utilizzo di database in determinati settori, come l'assistenza sanitaria o la finanza, sono alcuni dei potenziali argomenti di interesse. Un database è necessario affinché tutte le attività commerciali abbiano un tavolo ordinato, inclusi negozi e siti di e-commerce.(Lutkevich & Hughes, 2023)


A database strategy can offer your company a variety of benefits, advantages, and revenues. It helps you save money, makes your customers happy, and demonstrates how to expand your business.(Valcheva, 2020)

(Valcheva, 2020)


Database concepts such as primary and foreign keys

Primary keys

A primary key in a table is a column or combination of columns whose values uniquely identify a table row. Only one row can contain a specific primary key value in a table in a relational database, which is how it enforces primary key uniqueness. ( IBM, 2023)

Foreign keys

A column or combination of columns in a table that has values that match the main key in another table is known as the foreign key. A row in the associated table with the same primary key value must already exist in order to add a row with a specific foreign key value.
( IBM, 2023)

 Database concepts such as primary and foreign keys

With the help of a primary key or a foreign key relationship, tables can be linked to each other. Relational databases use primary and foreign key relationships to specify many-to-one relationships between tables.
The paths by which related tables are linked in the database are represented by the primary key/foreign key relationships between tables in a star or snowflake schema, also known as many-to-one relationships. The basis for querying historical data is these join paths. See Many-to-one relationships for more details on these connections. ( IBM, 2023)







Reference

 IBM (2023) Primary and foreign keys, Dimensional modeling. Available at: https://www.ibm.com/docs/en/ida/9.1.1?topic=entities-primary-foreign-keys (Accessed: March 11, 2023).

Mabli, I.J. (2017) Free image on Pixabay - database, Blue, SQL, Server. Available at: https://pixabay.com/illustrations/database-blue-sql-server-storage-2394312/ (Accessed: March 11, 2023).

Lutkevich, B. and Hughes, A. (2023) What is a database?: Definition from TechTarget, Data Management. TechTarget. Available at: https://www.techtarget.com/searchdatamanagement/definition/database (Accessed: March 11, 2023).

Valcheva, S. (2020) Database: Meaning, advantages, and disadvantages, Blog For Data-Driven Business. Available at: https://www.intellspot.com/database-meaning/ (Accessed: March 11, 2023).

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