RDBMS uses tables to store the data. A table is a collection of related data which is stored in rows and columns.
A simple example table in RDBMS looks like below:
Let us take an example of Employee table
|ID NO||Employee Name||Designation||Age|
The row in the table is also called as a record. It contains information about each individual entry in the table. In simple, we can say that is a horizontal entity.
The column is a vertical entity which contains information associated with the specific field of a table. For example, the Employee Name is a column which contains all names of employees associated to it as shown below