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multivalued data
Different types of attributes in DBMS are:Key or non key attributesRequired or optional AttributesSimple or composite AttributesSingle-valued and multi-valued AttributesStored, Coded or derived Attributes
Complex Attribute: A complex attribute is an attribute that is both composite and multivalued.
Types of Attributes in Dbms areKey or non key attributesRequired or optional AttributesSimple or composite AttributesSingle-valued and multi-valued AttributesStored, Coded or derived Attributes
Arity=#attributes
In dbms with m attributes 2^m-1 keys are possible. BY-ROHIT
Cardinality is the number of attributes in the table.
class in dbms is nothing but a collection of attributes.... class in java is defined as collection of objects....:D
In DBMS a table contains one or more columns there columns are the attribute in DBMS FOR EXAMPLE---say you have a table named "employee information"which have the following columns ID,NAME,ADDRESS THEN id ,name address are the attributes of employee..................
MySQL is an RDBMS.
Object oriented DBMS
Object-oriented DBMS