Dependency means that the one entity dependents on another entity. This is also applicable for the Function also.
For Example : If you trying to check the general function which tells you about the rooms availability, which consist of checkFreeRooms() and we can have the checkForACRooms() and CheckForSuits(), So the general function for checking Rooms dependents on the other rooms as above
1>Functional dependancies are constraints on the set of authorised relations.
2>In a particular relation say R attribute X is a functional dependant on attribute Y if every value in X in the relation has exactly one value of Y in the given relation.
3>The functional dependany is represented by:
X->Y
4>Which, implies that Y is functional dependent on X, or we say that X attibute functionally determines the attribute Y.
database simple attritbute
a default value
Third normal form.
DBMS acronym for Database management system. There are number of DBMS like RDBMS, ORDBMS, HRDBMS etc . RDBMS is basically to define relationship between the tales and also it follows various codds rules.
Acid cursor data database field primary & foreign keys procedure & function odbc & oledb normalization trigger
YES
what do u mean by lossiess join in dbms
overall design of the database
Jesse M. Draper has written: 'A functional specification of the relational DBMS' -- subject(s): Database management
Boyce -Codd normal form which is one of the forms of dbms noramlizations.normalization is converting the relations or tables in a standard form.bcnf is based on functional dependencies that take into account all candidate keys.a relation is in bcnf if every determinant has a candidate key..:)
NA_ what are highlights of advanced DBMS what are highlights of advanced DBMS what are highlights of advanced DBMS
no, Java is not dbms.. Java is a programming language Dbms is database
dbms
Three types of DBMS (Database Management Systems) include relational DBMS, object-oriented DBMS, and NoSQL DBMS. Relational DBMS organizes data into tables with rows and columns, object-oriented DBMS stores data as objects and classes, and NoSQL DBMS handles unstructured and semi-structured data with flexible schemas.
http://www.scselfservice.org/juvdep/juvdepwhat.htm
A key is a set of attributes that uniquely identifies an entire tuple, a function dependency allow us to express constraints that uniquely identify the values of certain attribute.