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The Basic 2PL:The basic two phase locking allows release of lock at any time after all the locks have been obtained. For instance, we can release the locks in schedule of Figure, after we have gone through the values of Y and Z in transaction 11, even before the display of the sum. This will increase the concurrency level. The basic 2PL is given graphically in Figure.
ADVANCE OBJECT DESIGN Introduction Analysis is the initial step of the OMT methodology. It is apprehensive with devising a precise, concise, correct and understandable mo
a set of possible data value of an attribute is called??
What is abstraction? Abstraction in the object orientation is a idea that provide opportunity to express necessary properties of object without providing much details of the im
What is serializability? Explain its types? The data base system must control concurrent implementation of transactions, to ensure that the data base state remains consistent.
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what is bogus empowerment. And what is genuine empowerment
Northwind Pty Ltd sells a variety of food products throughout the world. They want to use the reporting features of SAP's Business Information Warehouse to better understand their
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Event Occurrence of a process is called event. In other words, the object can receive many input instructions. The changes which occur due to these instructions are known as e
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