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Explain the Deferred Update The deferred update methods do not physically update the database on disk till after a transaction reaches its commit point; after that the updates
What is transaction? Transaction is a unit of program implementation that accesses and possibly updated several data items.
what do you understand by enhanced entity-relationship
a) Suppose we updated the catalog tables in real time, that is, after every update, insert, or delete SQL statement were executed-rather than only running RUNSTATS once every few
Boyce-Codd Normal Form (BCNF) The relation NEWSTUDENT (Enrolmentno, Sno, Sname, Cname, Cno,) has every attributes participating in candidate keys as all the attributes are assu
Now that she understands more about the benefits of databases, the play-scheme manager would like to extend the play-scheme database to include data for schools and instructors as
What are called jukebox systems? Jukebox systems have a few drives and numerous disks that can be loaded into single of the drives automatically.
i am required to come up with entities relationships, optionality and cardinality from a scenario. there is a night club and bookings for a musician band
assignment
How persistent programming languages differ from traditional programming languages? Database languages vary from traditional programming languages in that they directly manipul
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