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Explain trigger?
Trigger: A database trigger is procedural code which is automatically executed within response to certain events on a particular table in a database. Triggers could restrict access to exact data, perform logging, or audit data modifications.
Differentiate between logical database design and physical database design. Show how this separation leads to data independence? Basis Logical Databas
Relationship between Security and Integrity: Database security usually refers to access, while database integrity refers to avoidance of accidental loss of consistency. But usually
What is the function of IO/M signal in the 8085? It is a status signal. It is used to differentiate among memory locations and I/O operations. When this signal is low (IO/M = 0
need to get answer for questions 3&4 on this page in part 1
Explain the difference between optimistic locking and pessimistic locking. Optimistic locking supposes no transaction conflict will occur and deals with the consequences if it
You are to write a property management database program that allows a real estate agent to view, add, search, and save property listings. The program is to do the following: 1.
What is known as sequential file organization? In the sequential file organization, the records are kept in sequential order, according to the value of a "search key" of every
The Proliferation of Object-Oriented Methods The first few years of the 1990s saw blossoming of around fifty various object oriented methods. This proliferation is a sign of g
List and explain the memory constructs of the Oracle 12c databases?
Question: In relation to distributed database answer the following questions: (i) Give a brief definition of distributed database. Support your answer with an appropriate di
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