Normalization is a design technique that is widely used as a guide in designing relational databases. Normalization is essentially a two step process that puts data into tabular form by removing repeating groups and then removes duplicated...
Entity Relationship Modeling (ER Modeling) is by far the most common way to express the analytical result of an early stage in the construction of a new database. E-R Diagram are the way to achieve this.
Entity Relationship diagram...
The Eight Relational Algebra Operators are:
To retrieve specific tuples/rows from a relation.
To retrieve specific attributes/columns from a relation.
To obtain all possible combination...
The Relational Model was a huge step forward, as it allowed files to be related by means of a common field. In order to relate any two files, they simply need to have a common field, which makes the model extremely flexible.
Data refers to raw facts and figures. It can be anything like name of a person or a place or a number etc.
Data is a name given to basic facts and entities such as names and numbers.
It is the processed form...