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Let T1 have the operations r(x); w(x); r(y); w(y) and T2 have the operations r(x); w(x). Consider adding either a commit or abort to each of the transactions T1 and T2 and consider the different possible concurrent (not serial) schedules. From among these dierent possible concurrent schedules (with either a commit or abort added), give examples of:
(a) A schedule which is non-recoverable.(b) A schedule which is recoverable but is not strict.(c) A schedule which is strict, but not serial. Note that you are free to add either a commit or an abort to T1 and either a commit or an abort to T2 for each of the above problems i.e. in one you may decide to add commits to both T1 and T2, in another an abort to T1 but a commit to T2 etc.
mention various steps required to draw an e-r diagram. draw an e-r diagram for student information system. mention all
prepare a 700 word paper discussing the case and incorporating answers to the questions below. it is important to
Create 3 rows of data for each table ensuring that the referential integrity is valid and add the 30 rows of data to the appropriate table in your database (using any appropriate method available).
write a two to three 2-3 page paper in which yourecommend at least three 3 specific tasks that could be performed to
create the flowchart of the above business processes. The assignment will be completed in 2 parts:1. AS-IS Model2.TO-BE Model once feedback is given from Professor after completing Part 1 (AS-IS Model)
Estimate the height of the B+ tree. (Giving a range of heights is fine.) Also estimate the amount of memory needed to store the tree, including leaves but not including the posting lists themselves.
Investigate how databases solve multiple concurrent data management issues comprising lost updates, deadlocks and different kinds of lock management styles.
Exceptions in credit card transactions can aid us fraudulent use of credit card. Suggest two methods for outlier detection.
write a 2 page research paper on the turing and von neumann models. compare and contrast each and discuss which model
You have probably seen that already when you tried to create an E-R diagram. Visio uses notation and graphical shapes that are not the same as those in your text. If you look at some of the links to schemas, you will see a similar sort of thing.
1.distinguish between the terms lsquoerp implementation and lsquoerp configuration2.explain the purpose of the entity
To complete this assignment, you will need to do data calculations. Remember to follow good database practice here by not saving your calculations as part of the data table itself (they should appear only in your queries).
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