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Explain data independence ? Data independence is the capacity to modify the schema at one stage of a database system without having to change the schema at the further level.
Problem: a) Briefly describe what you understand by Client-Server environment b) The File Server is a simple form of Client-Server. Describe the principles of the File Serve
What are the two types of errors? The two types of errors are: a) Logical error b) System error
Describe Parameteric end users? Parametric end users might be given update access, but are commonly not permitted to change the structure of data.
What is Cardinality Ratio? Cardinality Ratios - The cardinality ratios for relationship kinds specifies the maximum number of relationship instances in which an entity can pa
I have to solve a problem using access
(a) Why did SAP introduce the extended star schema?
What is the use of keyword ISA? The use of keyword ISA is to show that a class is a specialization of another class.
Describe the static hash file with buckets and chaining and show how insertion, deletion and modification of a record can be performed. In static hash file organization, the wo
The insertion of a tuple in the aim of reference does not cause any destruction. Though, insertion of a tuple in the relation in which, we has the foreign key, for instance, in ASS
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