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Define object-relational systems?
Systems that give object-oriented extensions to relational systems are known as object-relational systems.
The Second Normal Form (2NF) Definition: A relation is in 2NF if it is in 1NF and each non-key attribute is fully dependent on each candidate key of the relation. Some of th
How to reduce data redundency
Views in relational algebra: 1. Basic expression contains either a) A relation in the database. b) A constant relation. 2. General expressions are madde out of sma
Describe the various types of Online Analytical Processing (OLAP) tools and briefly discuss how the support common analytical operations.
In E-R diagram how generalization is represented? in E-R diagram generalization is represented by Triangle shape.
Identification of concurrency Identification of concurrency: Dynamic model identifies concurrency. Two objects are said to be parallel (concurrent) if they can receive events a
What is bucket overflow and how bucket overflow is handled through Over Flow Chaining or Closed Hashing? Ans: Bucket: unit of storage holding records. Bucket is a disk block
what are the reasons having variable length records
Define a view and a trigger. Construct a view for the above relations that have the information about suppliers and the elements they supply. The view holds the S#, SNAME, P# , PNA
Do you have experts of the dbms
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