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Objectives
what is cascading? what is rollback cascading? please explain in detail
in case of functional dependencies how we get the higher normal form.
construct a b-tree for the following set of key values 2,3,5,7,11,17,19,23,29,31.assume that the tree is initial empty and the values are added in ascending order
how to make an e r diagram?
What are called journaling file systems? File systems that support log disks are known as journaling file systems.
When a function module is activated syntax checking is performed automatically. YEs, a function module is activated syntax checking.
What are the advantages and disadvantages of merging an association into a class? Advantages: i) Less number of tables ii) Faster performance due to the fewer tables
Explain data abstraction? Data abstraction Data abstraction is a methodology in which enables us to isolate how a compound data object is utilized from the details of how it is
What are called multilevel indices? Indices with two or more levels are known as multilevel indices.
Benefits: It limits data access. It makes difficult queries look easy. It permits data independence. It presents dissimilar views of the similar data.
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