Consider a system that provides persistent objects. Is such a system necessarily a database system? Explain your answer.
Answer to relevant QuestionsConsider the database schema Emp = (ename, set of(Children), setof(Skills)) Children = (name, Birthday) Birthday = (day, month, year) Skills = (type, set of(Exams)) Exams = (year, city) Assume that attributes of type set ...Consider the E-R diagramin Figure, which contains composite, multivalued and derived attributes.a. Give an SQL: 1999 schema definition corresponding to the E-R diagram. Use an array to represent the multivalued attribute, ...Give an alternative representation of bank information containing the same data as shown in figure but using attributes instead of subelements. Also give the DTD for this representation. A-101 Downtown 500 A-102 ...Write queries in XSLT and XQuery to output customer elements with associated account elements nested within the customer elements, given the bank information representation using ID and IDREFS as shown below.· · · similar ...RAID systems typically allow you to replace failed disks without stopping access to the system. Thus, the data in the failed disk must be rebuilt and written to the replacement disk while the system is in operation. With ...
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