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Explain the two types of participation constraint. Total: The participation of an entity set E in a relationship set R is said to be total if each entity in E participates i
differences between a classified catalog and a dictionary catalog
The functions of DBA ?
Have a look around the site, and at some of the sites they have featured. These are all examples of bad design, and also offer an explanation about why they fall into this category
Consider a systems development project with the following data Activity Duration (weeks) Precedence Relationship 1. Software design
10A.53 Code an Oracle Database trigger to enforce the constraint that an employee can never change his or her department. 10A.54 Code an Oracle Database trigger to allow the
Determine Which is not a consequence of concurrent operations? Ans: Update anomaly.
Answer SQL Queries to extract data from data tables and questions on mapping conceptual data models into relational data model.
Explain the uses of deadlock It will lead to deadlock since this is the only place where incoming acknowledgements are processed. Without this code, sender will keep timing ou
Breaking into Subsystems Decomposition is a significant technique for coping with complexity based on idea of divide and conquers. In dividing a problem into sub problems, the
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