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What is trigger? Triggers are statements that are executed automatically by the system as the side effect of a modification to the database.
Differance between Unordered and ordered file ? Unordered file do no has any sequence although ordered file has arranged in a few sequence and data are assigned in ordered form
The Concurrent Transactions Almost every commercial DBMS support multi-user environment. Therefore, allowing multiple transactions to proceed concurrently. The DBMS must make
State the Design of Associations Before designing associations, it is essential to know the way they are used. For this, analysis of association traversals is required. It is
Differentiate between logical database design and physical database design. Show how this separation leads to data independence? Basis Logical Databas
Consider the following six relation schemes and their corresponding sets of functional dependencies. In each case identify a. All the candidate keys b. The highest normal for
explain exhausitively the problems associated with er diagrams with ellustrations
how the string works as keyword?
Give an example of operations from the State Actions and Activities. For instance, in bank the activity verify account code and verify password
Update Anomaly : This anomaly is occurred due to data redundancy. Redundant information makes updates more complex since, for example, varying the name of the instructor of MCS-014
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