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What it creates while a primary key is combined with a foreign key?
It creates Parent-Child relation ship between the tables that connect them while a primary key is combined with a foreign key.
Describe the difference between a one-to-many and a many-to-many relationship. Which logical data structures comprise one-to-many and which comprise many-to-many relationship?
Describe the shadow paging technique.
Create 1 experiment to demonstrate an aspect of query optimisation by using access-path structures (indexes), decomposition, or denormalisation. Once satisfied with your experiment
(a) Why did SAP introduce the extended star schema?
Explain the function of Object model Object model describes the classes of objects in system, including their attributes and operations which they support. The analysis object
please describe the data base management with the easy example &give the application?
Which data type can store unstructured data? Raw data type can store unstructured data.
Given the following set of functional dependencies {cf?bg, g?d, cdg?f, b?de, d?c} defined on R(b,c,d,e,f,g) a.Find a non-redundant cover. b.Find a canonical cover.
properties of derirable decomposition
diagrams and meaning
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