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(Enhanced Entity-Relationship Model)
Given the following EER diagram of the Museum Database.
(4A) List the requirements for this EER diagram.
(4B) Convert this EER diagram to relational database schemas.
Create a link list in ADT c to maintain employee information like name,empid,basic salary and address.1.add employee info to the list if the empid is valid.
Write down your subquery MAX_CALC_SAL. Name columns in result JOB_TITLE and JOB_TOTAL, and sort result on JOB_TOTAL in descending order.
Use SQL to create the following database; to including referential integrity. You may NOT use the GUI for this part of the exercise. COURSE ( CourseNu, CourseName, CreditHrs).
Give examples of binary 1:N relationships, for (a) an optional-to-optional relationship, (b) an optional-to-mandatory relationship,
Describe a minimum of three (3) heuristics to optimize Queries - provide the SQL code (and screen shots)
XML is one of the base technologies around which many other technologies are developing. Describe an application used at work (or online) that is based on XML and discuss the advantages and disadvantages of XML in this application.
A database is to be created for University to monitor students' progress throughout their course of study. Students are reading for degree (such as BTech, BTech(Hons) MCA, etc) within framework of modular system.
Find '(2007), '(2008), and '(b), where b is the integer obtained from the last four digits of your student number.
List the courses (D-code and C-no), along with the names of the students who are currently taking them. List all the courses (D-code and C-no) that John (i.e., S-Name=''John'') got 'A' grade.
You are required to design (using an E-R diagram) an entity-relationship model of the problem, convert the model into a relational model, and assess the normal form of each schema.
There are many kinds of relationships in a design model of a database. Why is it important to classify each of these types in an ERD Model?
What problems could be caused by not having appropriate indexes and what problems could be cause by having too many indexes?
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