Relational data model is currently used in all business transactions. It is based on the concept introduced by E F Codd. It is composed of one or more tables. Tables are made up of rows and columns. Here tables are called relations, rows are called tuples and the columns are called attributes. The advantages of this model is neither data redundancy nor complexity.
Eg:
Customer |
Address |
Gita |
Add1 |
Lata |
Add2 |
Ram |
Add3 |