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Question
(a) Concurrent access to data from a database is a normal part of application program usage. Describe three approaches to concurrency control
(b) Distinguish among a DataReader class and a DataSet class
(c) Write an ASP.NET program that retrieves a count of the records in the tblVideo database table and displays the result in a Label control as follows
There are x records in tblVideo database tabl
where x is the number of records
Filename for the local database: VideoClub.mdf
Note: Programmatic codes required here
Consider the relations City (city_name, state) Hotel (name, address) City_hotel (hotel_name, city_name, owner) Answer the following queries in relational algebra (i) Find
The State of NewYork certifies firefighters throughout state and keep track all of them, as well as of the state’s fire departments. Each fire department has unique department numb
Identification of concurrency Identification of concurrency: Dynamic model identifies concurrency. Two objects are said to be parallel (concurrent) if they can receive events a
give some example real life situation where DBMS are most suitable
Create Student DB and perform delete operation? STUDENT (name, student#, class, major) COURSE (course name, course#, credit hours, department) SECTION (section identifier, co
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
how to prepare a data dictionary for online examination system for certified courses?
Define What are the desirable properties of a decomposition Ans: What are the desirable properties of decomposition - dependency preserving. Because Lossless join and dependen
Find the names of all Albums that have more than 30 tracks. Result: (name: varchar(255))
For every multivalued attribute 'A', we make a new relation R that contains an attribute corresponding to plus the primary key attribute k of the relation that shows the entity typ
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