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Briefly describe the different kinds of users of a DBMS.
Ans: Different sorts of DBMS users are:
(a) Software Engineers: These are the people accountable for developing application programs by using DBMS.
(b) End users: These are the people whose jobs need access to the database for querying, updating, and producing reports.
(c) Database Administrator: They are accountable for authorizing access to the database, coordinating and monitoring its use.
(d) Database designers: They are accountable for identifying data to be stored in the database.
What is Natural Language Interfaces? Natural Language Interfaces - These interfaces accept requests written within English or a few other language and attempt to "understand" t
Discuss deferred update technique of recovery. What are the advantages? Ans: The deferred update methods do not physically update the database on disk till after a transact
Explain Strict Two-Phase locking A transaction T does not release any type of its exclusive (X) locks until that transaction commits or aborts. In this method no other transact
For the question given below, you are required to submit design and implementation documentation as described over the page. Design, implement (in Java), test and document a set of
Define Deadlock prevention These protocols make sure that the system will never enter a deadlock state. There are two methods to deadlock prevention. One approach makes sure t
Normal 0 false false false EN-US X-NONE X-NONE
What is a view in SQL? When can views be updated? A view is a virtual table which consists of columns from one or more tables. Through it is same to a table; it is stored in
Describe Parameteric end users? Parametric end users might be given update access, but are commonly not permitted to change the structure of data.
explain participation constraints with examples
Backward Recovery (UNDO): In this system the uncommitted changes made by a transaction to a database are undone. Instead the system is reset to the last consistent state of databa
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