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Saving Derived Attributes to Avoid Re-computation
Data that is derived from other data should be stored in the computed form to avoid re-computation. For this, we could define new classes and objects and these derived classes must be updated if any of the base objects is changed.
List the types of authorization. A) Read authorization B) Write authorization C) Update authorization D) Drop authorization
Question 1 Discuss about second normal form and third normal form Question 2 Write short note on 1) Data Manipulation Language 2) Data Definition La
State the definition of association An association is a structural relationship which specifies that objects of one thing are connected with objects of another. In UML, asso
what is meant semantic query optimization? how does it differ from other query optimization techniques?
What is inheritance? Define it in detail? Inheritance Inheritance can be at the levels of types, or at the level of tables we first consider inheritance of types, then i
A B-tree of order how much children m has maximum ? m has maximum m mchildren in a B tree.
please give me introduction to full data in D B M S in a short assignment
Un-Normalized Form (UNF) If a table having non-atomic values at every row, it is said to be in UNF. An atomic value is something that cannot be further decomposed. A non-atomic
HOW MANY TYPES OF VIEWS
deffine class&object
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