A functional dependency is defined as a constraint between two sets of attributes in a relation from a database.
Given a relation R, a set of attributes X in R is said to functionally determine another attribute Y, also in R, (written X→ Y) if and only if eachX value is associated with at most oneY value.
A functional dependency X --> Y is full functional dependency if removal of any attribute 'k' from X means that the dependency does not hold any more. Full functional dependency is minimal in size.
Partial Functional Dependency Indicates that if A and B are attributes of a table, B is partially dependent on A if there is some attribute that can be removed from A and yet the dependency still holds.
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.
I think that functional area is a place where people works and a management function is a people who manage...
Managing the quantity of labour used
Very little. An algorithm is a method that has been expressed in a detailed, unambiguous form.
The difference between functional and nonfunctional is ... functional mostly depends on the domain or x- value in a coordinate- (x,y). I one of the x-values are the same number then the equation becomes NONFUNCTIONAL-for example: (-2,4), (-1,9) (-2,5). Those coordinates would be nonfunctional because there were 2 (-2s). It doesn't matter if the y value -(x,Y) is the same just as long as the x values are differnt numbers it will be functional.
ordinary differential equation is obtained only one independent variable and partial differential equation is obtained more than one variable.
The difference is that partial dependency is when a database's attribute is only partially dependent on the primary key. Fully functional dependency is when the attribute is entirely dependent on the key.
Full Dependency:Given a relation R and functional dependency x->y (y is fully functionally dependent on x)there is no any z->y ,where Z is a proper subset of xPartial Dependency:If any proper subset of the key determine any of the non-key attributes then there exist a partial dependency p q->c d (p q is the primary key)p->cq->cp->dq->d
A constraint between two sets of attributes is known as functional dependency in relational database. Determination of functional dependencies is vital in database denormalization, normalization and relational model.
The difference between functional and dysfunctional conflict is that functional serves a purpose in the organization such as the interest and dysfunctional serves no purpose but to threaten the organization.
the difference between functional & decorative, is that functional is when a certain accessory is actually used, while decorative is just for showing something
A functional group works
A partial dependency is a dependency where A is functionally dependant on B ( A → B), but there is some attribute on A that can be removed from A and yet the dependacy stills holds. For instance if the relation existed StaffNo, sName → branchNo Then you could say that for every StaffNo, sName there is only one value of branchNo, but since there is no relation between branchNo and staffNo the relation is only partial. In a transitive dependancy is where A → B and B → C, therefore A → C (provided that B → A, and C → A doesn't exist). In the relation staffNo → sName, position, salary, branchNo, bAddress branchNo → bAddress is a transitive dependacy because it exists on StaffNo via BranchNo. That is the difference. A partial dependency is a dependency where A is functionally dependant on B ( A → B), but there is some attribute on A that can be removed from A and yet the dependacy stills holds. For instance if the relation existed StaffNo, sName → branchNo Then you could say that for every StaffNo, sName there is only one value of branchNo, but since there is no relation between branchNo and staffNo the relation is only partial. In a transitive dependancy is where A → B and B → C, therefore A → C (provided that B → A, and C → A doesn't exist). In the relation staffNo → sName, position, salary, branchNo, bAddress branchNo → bAddress is a transitive dependacy because it exists on StaffNo via BranchNo. That is the difference.
What is the difference between functional and perceptual regions? i want my answere soon please and thank you
Constituency grammar analyzes the structure of a sentence based on constituents (phrases and clauses), which are hierarchical units. Dependency grammar, on the other hand, focuses on the relationships between words in a sentence where each word is dependent on another in a tree-like structure. Constituency grammar emphasizes structure, while dependency grammar emphasizes dependencies among words.
Difference between the traditional /human relation and interactionist views of confilct
The term cock and valve are used interchangeably in the English language. The term cock has in large been replaced with valve with no functional difference between the two.
Disease is any change from a state of health; impaired body function.