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What are object interaction diagrams?
Object interaction diagrams are the diagrams that used to describe order in which messages are communicated in execution of an operation, and this information is used as guidance for implementation of the individual operations.
What is the used of specifying alias? Specifying alias: is used to rename column or attribute in a table.
The following variant of the primary copy asynchronous-update replication protocol has been proposed for totally replicated systems. (a) A transaction executing at site A updat
For the relations R and S given below: R S A B C 1 4 7 2 5 8 3 6 9
Need for Client Server Computing- Client/Server (C/S) architecture includes running the application on multiple machines in which every machine with its component software tackles
Create centralized relational database using bottom up method. (a) Recognize a single un-normalized relation for the above scenario. (b) Recognize the primary key for
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.
In how many parts events are classified Events are classified as four types in UML 1. Signals 2. Calls 3. Passing of Time 4. Change in State
wh
Preliminary entities and attributes of human resourse management database management system
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