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What is transaction?
Collections of operations that form a single logical unit of work are known as transactions.
What are the basic objects of the data dictionary? Tables Domains Data elements Structures Foreign Keys
Define average seek time. The average seek time is the average of the seek times, calculated over a sequence of random requests.
If the deletion violates referential integrity constraint, then three alternatives are available: Default option: - refuse the deletion. It is the job of the DBMS to describ
Why did SAP introduce the extended star schema? Explain why it is reported to be better than the traditional schema model?
what are the reasons having variable length records
What is Object Oriented model? This model is based on collection of objects. An object has values stored in instance variables with in the object. An object also having bodies
Write short notes on data ware housing? Data ware housing applications needs the transformation of data from many sources into a cohesive reliable step set of data configured a
Express the subsequent query in SQL assumes which the data is stored within EMPLOYEE table with relevant fields (i) Display name, job, salary, and hire date of employee who are
What is the difference between SQL Server 2000 clustered and nonclustered indexes? With a clustered index, the data are kept in the bottom level of the index and in the similar
how to connect vb.net with access
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