Transitive dependencies occur when a determinant affects the values of more than one business object.
transitive
Transitive
transitive
checkers is the direct object so play is transitive
transitive
A functional dependency X->Y is transitive in R, if there exists an attribute Z in R, such that X-> Z, Z-> Y .
transitive dependency
Transitive Dependency
Data dependency in DBMS refers to the relationship between different data elements within a database. There are three main types: functional dependency (one attribute determines another), partial dependency (part of a composite key determines other attributes), and transitive dependency (dependency between non-key attributes). Understanding data dependencies is crucial for database normalization and maintaining data integrity.
The purpose of normalizing data in DBMS is to reduce the data redundancy and increase the consistency of data. a) Partial dependency: non-prime attribute ( field) depends on other non-prime attributes b) Functional dependency c) Transitive dependency
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.
transitive
transitive
transitive
transitive transitive
Transitive
Transitive