what is relational database
Relational Database Management System (RDBMS) means that tables in database are related using primary/foreign key relationship. Used to store, modify and retrieve data in the database. • How are they related? Primary Key (unique and not NULL) Foreign Key (duplicate and NULL) • What type of database system you have expertise with? RDBMS, such as SQL and Oracle • Entity Relation Model (ERM): An entity can be a real-world object, that can be easily identifiable: student, class, teacher. • Attributes: Things that describe the Entity. (student name, age, birthday…)
