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Briefly answer the following questions:
1. If the system fails repeatedly during recovery, what is the maximum number of log records that can be written (as a function of the number of update and other log records written before the crash) before restart completes successfully?
2. What is the oldest log record we need to retain?
3. If a bounded amount of stable storage is used for the log, how can we always ensure enough stable storage to hold all log records written during restart?
From the JD, the set of relation schemes SP, PJ, and JS is a lossless-join decomposition of SPJ. Construct an instance of SPJ to illustrate that no two of these schemes su?ce.
Dual Assessment of Data Quality in Customer Databases,Journal of Data and Information Quality (JDIQ), Volume 1 Issue 3, December 2009, Adir Even, G. Shankaranarayanan.
asnbspyou approach thenbspend ofnbspthe class you have seen how a database can be set up and accessed.nbspnext you
prepare a 700 word paper discussing the case and incorporating answers to the questions below. it is important to
Write SQL statements to create the corresponding relations to the ER diagram you designed for Exercise 2.8. If your translation cannot capture any constraints in the ER diagram, explain why.
need a system that networks its 3 campuses in the us and one campus in singapore. transaction data for all campuses
Using your knowledge of Premiere Products, determine the functional dependencies that exist in the following table.
given the following sample database diagram do the followingcreate the needed tables in the sql server environment just
Assume that relation Employee has no tuples in it initially. You are to show the simplest example you can think of where using trigger T1 will produce a different final database state than using trigger T2.
The appropriate SQL command which should be copied from your source code in MySQL and resultant tables, which must be screenshots to show the change due to the execution of the SQL commands
convert an erd to a relational schemacovert the extended entity relationship diagram eerd for orthopedic alliance of
Design the screen with the actual values. Students have to also create a data dictionary to explain what type of data is expected to display with the given input.
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