Database Concepts (7th Edition)
7th Edition
ISBN: 9780133544626
Author: David M. Kroenke, David J. Auer
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 6, Problem 6.34RQ
Program Plan Intro
Cursor:
The term cursor is used to retrieve the information in row by row manner. If the records stored in the
- It plays the major role for fetching a required row from the table in the database which holds numerous records.
- Cursors are defined using SELECT statement.
- It points the set of rows which is resulted from an SQL SELECT statement.
- In general the cursor is placed in the first or last row.
- It influences the performance of the SQL Server as it uses the SQL server instances memory, decrease network bandwidth, and reduction in concurrency.
- It’s recommended to avoid the use of cursor and the cursor can be replaced with WHILE loop, temporary tables, and sub queries.
- The types of cursor are listed below:
- Forward-only cursor
- Static cursor
- Dynamic cursor
- Keyset cursor
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Please original work
In the progression from raw data to actionable knowledge, business analysts play a crucial role in transforming and interpreting data to support strategic decision-making.
What do you think are the most important skills a business analyst needs to effectively navigate the transition from data to information and then to knowledge?
How can organizations ensure that analysts are equipped to extract meaningful insights that drive informed decisions? Share examples or insights from your own experiences or studies.
Please cite in text references and add weblinks
Research enterprise network services commonly performed by Linux servers. Choose 3 and describe their function, as well as why they are typically set up on Linux machines.
The term color tone refers to the "temperature" of a photo.
Question 17Select one:
True
False
Chapter 6 Solutions
Database Concepts (7th Edition)
Ch. 6 - Prob. 6.1RQCh. 6 - Explain how database administration tasks vary...Ch. 6 - Prob. 6.3RQCh. 6 - Prob. 6.4RQCh. 6 - Prob. 6.5RQCh. 6 - Prob. 6.6RQCh. 6 - Prob. 6.8RQCh. 6 - Prob. 6.9RQCh. 6 - Prob. 6.10RQCh. 6 - Prob. 6.11RQ
Ch. 6 - Prob. 6.12RQCh. 6 - Prob. 6.13RQCh. 6 - Prob. 6.14RQCh. 6 - Prob. 6.15RQCh. 6 - Prob. 6.16RQCh. 6 - Prob. 6.17RQCh. 6 - Prob. 6.18RQCh. 6 - Explain the benefits of marking transaction...Ch. 6 - Explain the use of the SQL transaction control...Ch. 6 - Prob. 6.21RQCh. 6 - Describe statement-level consistency.Ch. 6 - Prob. 6.23RQCh. 6 - Prob. 6.24RQCh. 6 - Prob. 6.25RQCh. 6 - Prob. 6.26RQCh. 6 - Prob. 6.27RQCh. 6 - Explain what serializable isolation level is. Give...Ch. 6 - Explain the term cursor.Ch. 6 - Prob. 6.30RQCh. 6 - What is the advantage of using different types of...Ch. 6 - Explain forward-only cursors. Give an example of...Ch. 6 - Explain static cursors. Give an example of their...Ch. 6 - Prob. 6.34RQCh. 6 - Prob. 6.36RQCh. 6 - Prob. 6.37RQCh. 6 - Describe the advantages and disadvantages of...Ch. 6 - Prob. 6.40RQCh. 6 - Prob. 6.41RQCh. 6 - Prob. 6.42RQCh. 6 - Prob. 6.44RQCh. 6 - Prob. 6.45RQCh. 6 - What is the advantage of making frequent...Ch. 6 - Summarize a DBAs responsibilities for managing...Ch. 6 - Prob. 6.48RQCh. 6 - Prob. 6.49RQCh. 6 - Prob. 6.50E
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.Similar questions
- You cannot add 3-dimensional effects to a shape. Question 18Select one: True Falsearrow_forwardWhich gallery shows available shapes for WordArt text? Question 10Select one: a. Transform b. Shape Styles c. Themes d. WordArt Stylesarrow_forwardWhen you press [Shift][Ctrl] while dragging a corner sizing handle on a graphic, the graphic is ____. Question 9Select one: a. resized while keeping the center position fixed and maintaining its proportions b. resized proportionally c. re-positioned diagonally d. resized diagonally while changing proportionallyarrow_forward
- What is the term used to describe trimming away part of a graphic to expose only some of it? Question 8Select one: a. Resizing b. Hiding c. Cropping d. Scalingarrow_forwardTo insert a SmartArt graphic in a document, click the SmartArt button in the _____ group on the Insert tab. Question 6Select one: a. Text b. Shapes c. Illustrations d. Pagesarrow_forwardBriefly define and discuss the following classes of problems: P, NP, NP-Complete, co-NP, NC, P-Complete.arrow_forward
- A3Q3.c - You are to write a C program that implements the following disk scheduling algorithms: a. FCFS [10 marks] b. SCAN [10 marks] c. C-SCAN [10 marks] d. SSTF [10 marks] e. LOOK [10 marks] f. C-LOOK [10 marks] • Your program will service a disk with 300 cylinders numbered 0 to 299. • • • • The program will service the requests (a list of 20 cylinder numbers) given in the file request.bin. This file contains (4 byte) integer values representing requests ranging from 0-299. Your program will take the initial position of the disk head as the first command line argument and the direction of the head as the second command line argument. It will then output the requests in the order in which they are serviced, and the total amount of head movements required by each algorithm. In particular, your program needs to do the following: Your program should take two command line arguments a) First command line argument - initial position of the disk head (an integer value) b) Second command line…arrow_forward2. The memory management has contiguous memory allocation, dynamic partitions, and paging. Compare the internal fragmentation and external fragmentation for these three approaches. [2 marks] 3. Suppose we have Logical address space = 24 = 16 (m = 4), Page size=2² =4 (n = 2), Physical address space = 26 = 64 (r = 6). Answer the following questions: [4 marks] 1) Total # of pages ? 2) Total # of frames ? 3) Number of bits to represent logical address? 4) Number of bits to represent offset ? 5) Number of bits to represent physical address? 6) Number of bits to represent a page number? 7) Number of bits to represent a frame number / 4. What is translation look-aside buffers (TLBS)? Why we need them to implement the page table? [2 marks] 5. Why we need shared pages for multiple processes? Give one example to show the benefits. [2 marks] 6. How to implement the virtual memory by using page out and page in? Explain with an example. [2 marks] 7. We have a reference string of referenced page…arrow_forward8. List three HDD scheduling algorithms. [2 marks] 9. True or False? The NVM has the same scheduling algorithms with HDD. Explain why? [2 marks] 10. Why the modern mouses use polling to detect movements instead of interrupts? [2 marks] 11. What is thrashing? How does it happen? [2 marks] 12. Given a reference string of page numbers 7, 0, 1, 2, 0, 3, 0, 4, 2, 3, 0, 3, 0, 3, 2, 1, 2, 0, 1, 7, 0, 1 and 4 frames show how the page replacement algorithms work, and how many page faults? [6 marks], 1) FIFO algorithm? [2 marks] 2) Optimal algorithm? [2 marks] 3) LRU algorithm? [2 marks] 13. List at least three file systems that you know. [2 marks] 14. In C programming, how the seek to a specific position in the file by offset? [2 marks]arrow_forward
- Is developed App in play store much easier than in app store because i look app like human anonymus and like walter labs prioritize iphone app store first is it difficult to developed app on play store ? And btw i want to move to iphone anroid suckarrow_forwardQ12- A three phase transformer 3300/400 V,has D/Y connected and working on 50Hz. The line current on the primary side is 12A and secondary has a balanced load at 0.8 lagging p.f. Determine the i) Secondary phase voltage ii) Line current iii) Output power Ans. (230.95 V, 99.11 A, 54.94 kW)arrow_forwardmake corrections of this program based on the errors shown. this is CIS 227 .arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Np Ms Office 365/Excel 2016 I NtermedComputer ScienceISBN:9781337508841Author:CareyPublisher:Cengage
Principles of Information Systems (MindTap Course...Computer ScienceISBN:9781305971776Author:Ralph Stair, George ReynoldsPublisher:Cengage Learning
Database Systems: Design, Implementation, & Manag...Computer ScienceISBN:9781285196145Author:Steven, Steven Morris, Carlos Coronel, Carlos, Coronel, Carlos; Morris, Carlos Coronel and Steven Morris, Carlos Coronel; Steven Morris, Steven Morris; Carlos CoronelPublisher:Cengage Learning
Enhanced Discovering Computers 2017 (Shelly Cashm...Computer ScienceISBN:9781305657458Author:Misty E. Vermaat, Susan L. Sebok, Steven M. Freund, Mark Frydenberg, Jennifer T. CampbellPublisher:Cengage Learning
Np Ms Office 365/Excel 2016 I Ntermed
Computer Science
ISBN:9781337508841
Author:Carey
Publisher:Cengage
Principles of Information Systems (MindTap Course...
Computer Science
ISBN:9781305971776
Author:Ralph Stair, George Reynolds
Publisher:Cengage Learning
Database Systems: Design, Implementation, & Manag...
Computer Science
ISBN:9781285196145
Author:Steven, Steven Morris, Carlos Coronel, Carlos, Coronel, Carlos; Morris, Carlos Coronel and Steven Morris, Carlos Coronel; Steven Morris, Steven Morris; Carlos Coronel
Publisher:Cengage Learning
Enhanced Discovering Computers 2017 (Shelly Cashm...
Computer Science
ISBN:9781305657458
Author:Misty E. Vermaat, Susan L. Sebok, Steven M. Freund, Mark Frydenberg, Jennifer T. Campbell
Publisher:Cengage Learning