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entity relationship diagram about finance
In tuple relational calculus P1 → P2 is equivalent to ? A In tuple relational calculus P1→ P2 is equivalent to ¬P1 V P2. (The logical implication expression A B, meaning
I need some help with my normalization database homework.
composite attribute
In which relational modes, cardinality is termed? Answer : Cardinality is termed in a number of tuples relational modes.
What is a trigger
1. Define and discuss Work Breakdown Structure, Critical Path Analysis, PERT charts and GANTT charts. Describe the role of each in determining scope, budgets, and schedules? What
Discuss the importance and characteristics of database backup and recovery procedures, then describe the actions that must be detailed in backup and recovery plan
what is physical data structure
Describe relational model? Structure of relational data base Basic structure Database schema Keys Schema diagram Query languages
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