Question

what is a relational database ​

Answer 1

Explanation:

A relational database is a digital database based on the relational model of data, as proposed by E. F. Codd in 1970. A software system used to maintain relational databases is a relational database management system. 

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Answer 2

$<font color = black> relational database$

→ database structured to recognize relations between stored items of information.