Database Systems: Design, Implementation, & Management
13th Edition
ISBN: 9781337627900
Author: Carlos Coronel, Steven Morris
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Expert Solution & Answer
Chapter 5, Problem 3RQ
Explanation of Solution
Specialization hierarchy:
- The arrangement of higher-level supertypes entity and lower-level subtypes entity is called as specialization hierarchy.
- The specialization hierarchy is a “is-a” relationship model.
- It contains many levels of subtype or supertype relationships.
- Subtype is related to an entity supertype, where the supertype entity has common characteristics and the subtype entity has the unique characteristics of each entity subtype.
Example:
The following example demonstrates specialization hierarchy.
Explanation:
- Here, “Employee” entity is a “Supertype” entity...
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
Please help me wiht this and show the answer on hand written
I need to draw the state of the memory using the specifications below and provide answers to the question. I have to do it similar to the one shown on the board if that makes any sense.
All parameters are passed by reference.
The language uses static scoping.
What are the values of j and k after the execution of the program?
Please help me wiht this and show the answer on hand written
Chapter 5 Solutions
Database Systems: Design, Implementation, & Management
Ch. 5 - Prob. 1RQCh. 5 - What kinds of data would you store in an entity...Ch. 5 - Prob. 3RQCh. 5 - What is a subtype discriminator? Give an example...Ch. 5 - Prob. 5RQCh. 5 - What is a disjoint subtype? Give an example.Ch. 5 - What is the difference between partial...Ch. 5 - Prob. 8RQCh. 5 - According to the data model, is it required that...Ch. 5 - Prob. 10RQ
Ch. 5 - Prob. 11RQCh. 5 - Prob. 12RQCh. 5 - Prob. 13RQCh. 5 - Prob. 14RQCh. 5 - When implementing a 1:1 relationship, where should...Ch. 5 - What is time-variant data, and how would you deal...Ch. 5 - Prob. 17RQCh. 5 - Prob. 1PCh. 5 - Prob. 2PCh. 5 - Prob. 3PCh. 5 - Prob. 4PCh. 5 - Prob. 5PCh. 5 - Prob. 6PCh. 5 - Prob. 7PCh. 5 - Prob. 8CCh. 5 - Prob. 9CCh. 5 - Prob. 10C
Knowledge Booster
Similar questions
- Can you find the shortest path tree starting from vertex 3 to all other vertices for the graph below using BFSarrow_forwardCan you find shortest path from vertex 3 to all other vertices for the graph below.arrow_forwardcan you draw the shortest path tree using BFS for the following directed unweighted graph?arrow_forward
- What is the shortest path from vertex 3 to all other vertices:Which graph algorithm can solve the problem most efficiently(the quickest runtime)How could the same algorithm if the graph had edge weights? (create intermediate nodes)arrow_forwardThe difference between (1) a database management system (DBMS) and (2) a database, is: a. The first refers to a complete accounting system, the second refers to a subset of that b. The first is program software, the second is proprietary data and related files c. The first is hardware, the second is software d. Nothing—these terms are synonyms..arrow_forwarda) An example of the linear hash index is given below. Every time a new overflow page is added, the bucket pointed by Next is split, and Next is incremented by one. Show the index state after adding the keys 39, 25, and 29. hi ho Level=0, N=4 000 00 0*8* 001 01 17*33* 010 10 6*26* 42* 011 11 7* 11* 15* 23* 100 00 4* 12* 20* 101 01 5* 13* 21* 37* Nextarrow_forward
- What would be the runtime (big-O asymptotic notation) of Dijkstra’s algorithm if it is implemented based on an unsorted minimum priority queue in terms of vertices (v) and edges (e)? Please show all steps including the runtime of each step of the algorithm.arrow_forwarda) An extendable hashing index is given below. Present the state of the index after adding the keys 21, 25, and 29. Directory Buckets 0*8* 12* 20* 00 9* 13*33* 01 10 6*26* 42* 11 7* 11* 15*23* b) Explain the concepts of global depth and local depth of buckets. Which buckets in the index above (after inserting 21, 25 and 29) have a global depth equal to the local depth? c) Describe the bulk loading algorithm for B+ trees. What are the differences to using a simple B+ tree add operation?arrow_forwardb) Below is an example of a B+ tree. Add an element with key 19 and then delete an element with key 1. Present the final result. 1* 3* . 10 18 24 27 37 10*15* - 18 20 22 24*26* 24* 26* - 27* 30*32* 37*40*arrow_forward
- Books (bid, author, title, publisher, year, notes); Members (mid, name, surname, street, city, country, phone, notes); Borrow (rid, bid, mid, date, notes);arrow_forwardCustomer (cid, name, surname, city, address, phone) Account (aid, cid, amount, currency, created) Deposit (did, aid, cid, amount, date) Withdraw(wid, aid, cid, amount, date)arrow_forwardData environment The SPJ company manages the orders of the parts from the suppliers for the projects that run at other companies. A project is described with the project identifier, name, company where the project takes part, budget, start date, and the duration of the project. A part is presented with the part identifier, name, and price. A supplier is described by the supplier identifier, name, address, city and phone number. For each order of a product from a given supplier for a given project, we store the number of parts ordered, the price of the order, the date, and the comment. The information system SPJ includes the following tables. Parts pid, name, price ); Projects( jid, name, company, budget, start, duration ); Suppliers sid, name, address, city, phone ); Orders oid, pid, jid, sid, quantity, price, date, comment );arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
