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Briefly describe concurrency execution? Lock - based protocols Locks There are several modes in which a data item may be locked in this section we restrict our attention
What are the Overlapping elements Overlapping elements can be found by scanning all the elements in front of deleted element in priority list for the sheet and comparing them
What is nested relational model? The nested relational model is an extension of relational model in which domains might be either atomic or relation valued.
WHAT IS DBMS
Define access time. Access time is the time from when a read or write request is issued to when data transfer starts.
Question : Mr. Smith Harry has a car manufacturing company which has recently integrated management information system. He wishes to obtain more information on ethics and socia
Why older data models are being replaced by new data modelling 100 words accepted#
What are the basic objects of the data dictionary? Tables Domains Data elements Structures Foreign Keys
What is Gathering information and Producing ERD Gathering information: This could be a written document that explains the system in question with reasonable quantity of detai
Describe the definition of a transaction in SQL Ans: The SQL transaction starts implicitly. Transactions are finished by either Commit work that commits the transaction and st
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