Question
The relational model (RM) was a major milestone in DB history. Explain how the RM is related (1) to the relational algebra (RA), (2) to
The relational model (RM) was a major milestone in DB history. Explain how the RM is related (1) to the relational algebra (RA), (2) to SQL, and (3) to the entity-relationship model (ERM). For each of those three concepts (RA, SQL, ERM), provide a short explanation where you clearly mark the main *keywords* (mark with asterisks) that characterise the respective concept.
(1) Explanation RM and RA:
(2) Explanation RM and SQL:
(3) Explanation RM and ERM:
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Mastering PostgreSQL 12 Advanced Techniques To Build And Administer Scalable And Reliable PostgreSQL Database Applications
Authors: Hans-Jurgen Schonig
3rd Edition
1838988823, 978-1838988821
