...I bought a book from crossword; he packed the book and added two bookmarks into my pack. A thought came to my mind. Why do I need a bookmark? I can easily memorize the page number and the next time resume from the same page when I resume reading, or read them all over to reach to the point where I stopped reading. But not all have a blessed memory; moreover, there are better things to remember, my grandpa would rather bookmark and rely on it to help him resume reading. It’s a kind of simple index, isn’t it? This article focuses on how MS SQL Server uses indexes to read and write data. Data is arranged by SQL Server in the form of extents and pages. Each extent is of size 64 KB, having 8 pages of 8KB sizes. An extent may have data from multiple or same table, but each page holds data from a single table only. Logically, data is stored in record sets in the table. We have fields (columns) identifying the type of data contained in each of the record sets. A table is nothing but a collection of record sets; by default, rows are stored in the form of heaps unless a clustered index has been defined on the table, in which case, record sets are sorted and stored on the clustered index. The heaps structure is a simple arrangement where the inserted record is stored in the next available space on the table page. Heaps seem a great option when the motive is simply storing data, but when data retrieval steps in, this option back fires. An index acts as a fire fighter in this scenario. Indexes...
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...DEPARTMENT (DepartmentName, BudgetCode, OfficeNumber, Phone) Solution: CREATE TABLE DEPARTMENT( DepartmentName Char(35) NOT NULL, BudgetCode Char(30) NOT NULL, OfficeNumber Char(15) NOT NULL, Phone Char(12) NOT NULL, CONSTRAINT DepartmentPK PRIMARY KEY(DepartmentName) ); ========================================================================================== 7.5 Write a CREATE TABLE statement for the EMPLOYEE table. Email is required and is an alternate key, and the default value of Department is Human Resources. Cascade updates but not deletions from DEPARTMENT to EMPLOYEE. • EMPLOYEE (EmployeeNumber, FirstName, LastName, Department, Phone, Email) • Department in EMPLOYEE must exist in DepartmentName in DEPARTMENT • EmployeeNumber is a surrogate key that starts at 1 and increments by 1. Solution: CREATE TABLE EMPLOYEE( EmployeeNumber Int NOT NULL IDENTITY(1,1), FirstName Char(25) NOT NULL, LastName Char(25) NOT NULL, Department Char(35) NOT NULL DEFAULT ‘Human Resources’, Phone Char(12) NULL, Email Char(100) NOT NULL, CONSTRAINT EmployeePK PRIMARY KEY(EmployeeNumber), CONSTRAINT DepartmentFK FOREIGN KEY(Department) REFERENCES DEPARTMENT(DepartmentName) ON UPDATE CASCADE ON DELETE NO ACTION, CONSTRAINT EmployeeAK UNIQUE(Email) ); ========================================================================================= ...
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...Interview Questions for hiring an Oracle mid-level developer in an IT organization General Questions: • Please tell us a little about the organization that you work for and your role in it. • Do you see yourself as a nut and bold developer or more of team lead role within your organization • Do you have any issues with working on all phases of a project (such as Analysis, Design, Coding, Documentation and Implementation)? Under your current role, do you work in all these phases yourself or are you usually involved with one particular phase? General Oracle Database and PL/SQL Questions: • Do you have any experience with Autonomous Transactions in Oracle database? The purpose is to complete (commit/rollback) a transaction in a called procedure irrespective of the transaction state in the calling procedure. • Have you ever encountered a situation with Mutating Tables and what did you do to work around it? When a table is in state of transition it is said to be mutating. eg: If a row has been deleted then the table is said to be mutating and no operations can be done on the table except select. • What’s your experience with Oracle Forms and Reports. Where would you implement bulk of business rules so as to make your coding more modular in Oracle Forms? PLL’s (PL/SQL Libraries). • What is referential integrity? Rules governing the relationships between primary keys and foreign keys of tables within a relational database that determine data consistency. Referential ...
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...UNDERSTANDING THE RELATIONAL DATABASES Student’s Name Instructor’s Name Course Name 03/05/2016 RELATIONAL DATABASES Being a data administrator is to handle and organize the bulk of data masses for easy and convenient retrieval of the information at any point of time. I generally believe that compiling a bulk of data is very difficult task for anyone who has the responsibility to manage the information. Therefore, here we go through and understand the concept of relational databases and use of tables designed to manage the data for the problem cases in our daily life. A relational database is a defined group of data items systematized and controlled as a set of formally defined tables from which the collected and unmanageable data can be reassembled or accessed in various different techniques deprived of having to restructure the pre-arranged database tables (Rouse, n.d.). According to Codd (1982), “Relational processing entails treating whole relationships as operands. Its primary purpose is loop-avoidance, an absolute requirement for end users to be productive at all, and a clear productivity booster for application programmers” (p.298). It comprises of designed data tables that are connected together in some important way. For instance, consider an organization that offers items to clients. The organization keeps up a database of the items it offers. Every item has a one of a kind code so it can be uniquely recognized. The item database comprises of a table, and each...
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...NETW310 Week 5 Lab Report To complete your Week 5 Lab Report, answer all of the questions below. Create your report using the template starting on page 2 and submit it to the Week 5 Dropbox by the due date. NETW310 11/25/2014 Lab #5, Wireshark Introduction Lab Lab Report Each answer is worth seven points. Use a red colored font for you answers. Place the answers below the questions. 1. Is Wireshark open-source or proprietary? Open Source 2. What is seen in each of the three panes that display the packets seen on a local area network? The List Pane shows the packets that have been captured. The Tree View Pane shows the protocols in the packet. The Byte View Pane shows the raw data . 3. What does a display filter do? Allow you to define what packets are displayed in the filter pane 4. What does the protocol column show? The Highest Level Protocol in the frame 5. How do you expand the details in a layer of the packet in the middle frame? By pressing the plus sign in the upper left hand corner 6. Capture files have what file name extension? .pcap 7. The time column shows what? It shows the time relative to the first packet in increasing order. 8. When you right click on something in one of the panes what happens? A set of options appear that can be apllied to the packet 9. How is a display filter removed? Select clear in the top toolbar 10. When a filter is correct what color is the background of the filter window?...
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...called a structured interview. Although the two variations are similar (a postal questionnaire and a structured interview could contain exactly the same questions), the difference between them is important. If, for example, we are concerned with protecting the respondent’s anonymity then it might be more appropriate to use a postal questionnaire than a structured interview. Questionnaires are restricted to two basic types of question: Closed-ended (or “closed question”) is a question for which a researcher provides a suitable list of responses (e.g. Yes / No). This produces mainly quantitative data. Open-ended (or “open question”) is a question where the researcher doesn’t provide the respondent with a set answer from which to choose. Rather, the respondent is asked to answer "in their own words". This produces mainly qualitative data. Strengths / Uses of Method Weaknesses / Limitations of Method 1. The researcher is able to contact large numbers of people quickly, easily and efficiently using a postal questionnaire (since all he / she has to do is identify the group that will be targeted and post them the list of questions). 2. Questionnaires are relatively quick and easy to create, code and interpret (especially if closed questions are used). In addition, the respondent not the...
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...Questionnaire design This Advice Sheet introduces you to the some of the basics of designing a good questionnaire. Many research projects and dissertations demand the collection of primary data from individuals. Questionnaires are often the best way of gathering such information and views. However, a badly designed questionnaire may get only unusable responses or none at all. This Advice Sheet offers guidance on avoiding the pitfalls, and ensuring a successful result. What do you want to know? 1 Maximise success …. 1 Who to ask …. 1 Clear instructions …. 2 Questions …. 2 Order & layout …. 3 Email vs Print .... 3 Piloting …. 4 Further reading …. 4 What do you want to know? Before you even write the first question, it is important that you have a very clear idea about what you want your questionnaire to achieve. Write down your research goals, and think about what information you need to elicit from respondents to meet those goals. Think also about how you are going to analyse each question to get the results you need. Remember there is a difference between things you need to know, and those it would be nice to know. Eliminate unnecessary lines of questioning at the planning stage. Maximise your chances of success The aim of questionnaire design is to a) get as many responses as you can that are b) usable and accurate. To maximise your response rate: • Give your questionnaire a short and meaningful title • Keep the questionnaire as short and succinct as possible • Offer...
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...Miscellaneous Connect with Facebook See what questions your friends are asking today. Legacy account member? Sign in. Categories Miscellaneous Answers.com > Wiki Answers > Categories > Uncategorized > What are the effects of malls on student? What are the effects of malls on student? In: Uncategorized [Edit categories] Questions & AnswersOnline Tests, Quizzes and Surveys On Various Subjects. Sign Up now!www.Facebook.com Ads View Slide Show Answer this question... Answer Anonymously or Login More on: Uncategorized How do you say dad in kenyan? Adam There is no language called "Kenyan". Kenya's official languages are English and Swahili - in Swahili "dad" is "baba". more » What is The Kenyan word for Hello? Adam There is no language called "Kenyan". Kenya's official languages are English and Swahili - in Swahili "hello" is "jambo". more » Related Articles The 5 Coolest Secret Video Game Characters The 5 Coolest Secret Video Game Characters Spoilers: 5 Craziest Movie Plot Twists Spoilers: 5 Craziest Movie Plot Twists Most Touching Celeb Reactions to Cory Monteith's Death Most Touching Celeb Reactions to Cory Monteith's Death 6 Horror Movie Sets That Were Actually Haunted 6 Horror Movie Sets That Were Actually Haunted Top Questions How do you say Spirits in Kenyan? Adam There is no language called "Kenyan". Kenya's official languages are English and Swahili... What is 'excuse me' in Kenyan...
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...Unanswered In life, there is a set of questions that causes people to question their purpose in the world. These questions were designed to be simply that; questions. They have no answer and once the answer seems to become apparent, it changes into a defining moment, according to Jim Tilley. These defining moments that were once questions are the things that document our lives and how far we have come. Jim Tilley wrote the poem The Big Questions to talk about and parallel these things with everyday life. “The big questions are big only/ because they have never been answered (line 1/2).” Jim Tilley begins his poem The Big Questions, by posing a philosophical statement in which the audience begins to ponder what these questions might be. A typical big question that people face is what is my purpose here? Before reading the poem, I expected an answer to this question or at least another philosophical statement for afterthought. However, Tilley uses philosophy as well as humor to convey that there is not a concrete answer to these “big questions”. These “big questions” are only circumstantially large and will in time become unimportant. These big questions often have more depth to them than their philosophical nature. They can in turn be used to determine survival instincts and maturity. The example he uses is encountering a grizzly bear in the woods while hiking a trail. In most cases, when someone encounters a bear they have three options. The first and foremost being to run...
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...were gained from all the participants before the participation. All participants were naive as to the nature of the questionnaires. PROCEDURE After done and printing out the questionnaires, we the researchers started to distribute the questionnaires randomly using a random sampling method which is a coin toss method at University Tunku Abdul Rahman Perak Campus. We explained the objective of this research to the participants and obtained informed consent from participants after the participants agreed to participate in this research. Participants were given 10-15 minutes to complete the questionnaires. Researchers collected back the questionnaires right after participants completed it. Participants are not allowed to change any of the answers after the submission of questionnaire. The process of this data collection took 2 days. It started from 17th January 2014 to 18th January 2014. HOW TO GET SAMPLE The population of this research is UTAR, Perak Campus students. While our sample is 50 undergraduate students from Faculty of Arts and Social (FAS). These 50 students were divided into 2 groups according to gender which is male and female. Therefore, our sample was 25 male students and 25 female students from FAS. We got this sampling method through random sampling method. Random sampling means every member of the population have an equal chance of being selected. Our sample is said to be an unbiased sample because the sample is chosen at random from the population. We used...
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...Performance objective The candidate must be able to demonstrate a broad knowledge of research concepts, methods and processes. Assessment description The task is a case study with questions that assesses if the candidate has acquired the underpinning knowledge and skills required to gather, organise, analyse and present research information in the work place. Procedure 1. You have 5 minutes of reading time before you begin the test and 30 minutes to complete the case study questions. 2. You can ask your assessor if you are unsure about any questions. 3. You are to answer all of the questions in the time provided to you by your assessor. 4. When you have completed the study, advise your assessor who will collect it from you. Specifications • Written answer • Answer all of the questions completely • Answers must be legible, with correct spelling and grammar. Case study: Kerr Deliveries Robert Kerr had run a successful delivery company in NSW since 1995. He had 19 administrative...
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...USMLE Step 2 CK Test Question Formats …………………………………...………. 3 Introduction to USMLE Step 2 CK Sample Test Questions ………………………….. 5 Normal Laboratory Values ………………………………...………..…….….……….. 6 USMLE Step 2 CK Sample Test Questions………………………………………….... 8 Answer Sheet for USMLE Step 2 CK Sample Test Questions……………………….. 52 Answer Key for USMLE Step 2 CK Sample Test Questions……………………….… 53 2 USMLE Step 2 CK Test Question Formats Single-Item Questions This is the traditional, most frequently used multiple-choice format. It consists of a vignette and question followed by three to twenty-six options that are in alphabetical or logical order. The response options in this format are lettered (eg, A, B, C, D, E). You are required to select the one best answer to the question. Other options may be partially correct, but there is only ONE BEST answer. Items with an associated abstract or pharmaceutical ad were introduced into the examination in August 2011. Each abstract or pharmaceutical ad appears as a 2- or 3-item set; there are no more than 5 of these item sets in each examination. Because item sets with an associated abstract or pharmaceutical ad may require more time to answer than traditional multiple-choice items, blocks that include these item sets contain fewer items....
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...ASSESSMENT INFORMATION PACKAGE – EXAM 473 Copyright © 2010 U. S. Postal Service Contents • Preparing for the Examination • What to Expect in the Exam Room • Obligation to Provide Reasonable Accommodation for Qualified Applicants with a Disability • Frequently Asked Questions • Sample Test Questions Preparing for the Examination Read all the information in this package. Come to the test physically and mentally prepared. Get a good night’s sleep. On the day of the test, you will need to arrive at the testing center 15 minutes prior to the beginning of your appointment to allow time for the check-in process. Be sure to leave yourself enough time for traffic, finding the test center location, parking, and getting to the exam room. What to Expect in the Exam Room Upon arrival, you will be required to present one piece of state or U.S. Federal Government issued photo ID as specified in your appointment confirmation email. If you are a current USPS employee, you may bring your USPS ID badge. You will not be permitted to take the assessment if you do not present an ID meeting the stated requirements. Personal items are not allowed in the testing room. This includes all electronic devices such as cell phones, pagers, and PDAs. Please do not bring any unnecessary personal items to your assessment appointment as storage may not be available. We also ask that you not have anyone accompany you into the test center as there is not adequate space for visitors...
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...Interview Questions & Answers You Need to Know A Production http://breakingintowallstreet.com http://www.mergersandinquisitions.com Copyright 2010 Capital Capable Media LLC. All Rights Reserved. Notice of Rights No part of this book may be reproduced or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of the publisher. http://breakingintowallstreet.com http://www.mergersandinquisitions.com 2 Table of Contents Introduction .................................................................................................................. 4 Fit / Qualitative Questions ........................................................................................... 6 Analytical / Attention to Detail Questions & Suggested Answers ....................... 7 Background / Personal Questions & Suggested Answers ................................... 10 “Career Changer” Questions & Suggested Answers .......................................... 14 Commitment Questions & Suggested Answers................................................... 17 Culture Questions & Suggested Answers ............................................................ 20 “Future” Questions & Suggested Answers .......................................................... 23 Strengths / Weaknesses Questions & Suggested Answers ................................. 25 Team / Leadership Questions & Suggested Answers ......................
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...Leader’s use only Edexcel GCSE Religious Studies Question Leave Number Blank Full Course – 100% Written Examination Short Course – 100% Written Examination 1 Wednesday 14 May 2008 – Afternoon 3 Time: 2 hours 2 4 5 6 Materials required for examination Items included with question papers Nil Nil 7 8 9 10 Instructions to Candidates In the boxes above, write your centre number, candidate number, your surname, initial(s) and signature. Check that you have the correct question paper. Do not use pencil. Use blue or black ink. Answer five questions, ONE question from each section. For each section, indicate which question you are answering by marking the box ( ). If you change your mind, put a line through the box ( ) and then indicate your new question with a cross ( ). You are advised to spend 30 minutes on Section 5. Answer questions in the spaces provided in this question paper. Additional answer sheets may be used. Information for Candidates The marks for individual questions and the parts of questions are shown in round brackets: e.g. (2). There are 10 questions in this question paper. All questions carry 20 marks. In Section 5 you will be awarded up to 3 marks for the Quality of Written Communication. The total mark for this paper is 103. There are 24 pages in this question paper. Any blank pages are indicated. Advice to Candidates You will be assessed on your ability to organise and present information, ideas, descriptions and arguments...
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