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Define decision tree classifiers?
As the name suggests decision tree classifiers use a tree: Every leaf node has an associated class, and every internal node has a predicate associated with it.
Increased overheads on update : On the drawbacks side, it will need the system to ensure that all replicas of a relation are consistent. This shows that all the replicas of the rel
Define DBA database administrator? DBA : A database administrator (DBA) is a person who is responsible for the environmental aspects of a database. In common, these involves:
What are called journaling file systems? File systems that support log disks are known as journaling file systems.
In which relational modes, cardinality is termed? Answer : Cardinality is termed in a number of tuples relational modes.
What are the different approaches for database design? There are two basic approaches for database design which are as follows: Attribute driven: It compiles a list of att
what is multivalued dependency
Code an Oracle Database trigger to enforce the constraint that an employee can never change his or her department.
What are the properties in a relation ? In a relation Ordering of rows is immaterial and No two rows are identical.
Normal 0 false false false EN-US X-NONE X-NONE
What are the advantages of object ID? The main advantages of Object IDs are as below: i) IDs are not changing ii) IDs are completely independent of the changes in data v
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