Attributes - Definition - Database
Programming Language (MCQ) questions
Q. Which of the following has a relationship between / among themselves as a functional dependency?
- Published on 26 Aug 15
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-Posted on 03 Nov 15
- A single data item related to a database object. The database schema associates one or more attributes with each database entity.
- A row is also called as a record or a tuple which represents a single, implicitly structured data item in a table. In simpler terms, a database table can be thought of as consisting of rows and columns or fields.
- A table is a set of data elements (values) which uses a model of vertical columns (identifiable by name) and horizontal rows, the cell being the unit where a row and column intersect. A table has a specified number of columns, but can have any number of rows.
- A relation was defined by E. F. Codd it is a set of tuples (d1, d2, ..., dn), where each element dj is a member of Dj, a data domain.
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