-The Data in the relational database have to represented in tables, with some values in columns within rows.
-The rows goes from left to right and from top to bottom.
-The primary key in the first table must be a foreign key in the other table .
-You have to describe which kind of data each column have. Text, number, date etc…
-The Data within a column will be accessible by specifying, the column name, table name, and the value of the primary key of the row.
-The DBMS must support update, insert, and delete operations.
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