What is field?

In database, rows or lines of a table have special names. Each line is called a "field". Each field has a special subject. Relational databases arrange data as sets of database records, also called rows. Each record consists of several fields; the fields of all records form the columns.
For example, in a "address list" database, such as "Name", "Phone", "Address", "Post ZIP" and so on, these are table attributes shared by all rows, so these lines are called as "Name" field, "Phone" field, "Address" field, "Post ZIP" field.

In object-oriented programming, field is also called date member, and it is the data encapsulated within a class or object. There is an instance variable for each regular field in the case. For example, a student class has a student ID field and there is one distinct ID per student. A static field is one variable, which is shared by all instances.

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