A Guide to SQL
9th Edition
ISBN: 9781111527273
Author: Philip J. Pratt
Publisher: Course Technology Ptr
expand_more
expand_more
format_list_bulleted
Expert Solution & Answer
Chapter 7, Problem 23RQ
Explanation of Solution
Data dictionary:
- A data dictionary is an essential part of
database . - It holds the data about the data that means metadata.
- The data dictionary is active and combined in most DBMSs.
- It means that the DBMS check the data dictionary whenever the database is accessed or updated.
Types of information stored in a data dictionary:
- Details of each database tables such as their owners, their security constraints and when they were generated the tables.
- Data dictionary is used to store the information about the relations which are as follows:
- Relation name.
- Names and types of attributes of given relation.
- Domain and length of attributes.
- Names and definitions of database views.
- Data about the integrity constraints such as primary key constraints, foreign key constraints etc.
- Data dictionary is also used to store the data about the system users which are as follows:
- Names of legal users...
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Année scolaire: 2024/2025
Collège SMARA
Devoir à domicile 1 semestre 2
Prof: NILAJ
PHYSIQUE CHIMIE
Nom et Prénom:
Niveau: 3APIC
Exercice 1:
Durée: 1 heure
1) Donner la définition des termes suivantes?
Le Mouvement :
La vitesse moyenne:
2) Répondre par « Vrai » ou «>
Un objet peut être en mouvement et au repos
Si la vitesse est constante, le mouvement sera uniforme.
3) Compléter les phrases par les termes qui conviennent :
Pour déterminer le mouvement ou le repos d'un objet, vous devez choisir un autre objet appelé le
d'un point d'un corps mobile est l'ensemble des positions qu'il
occupe durant son mouvement.
Il y a trois types de trajectoires: circulaire.
La distance de freinage dépend de
4) Cocher la bonne réponse?
> La relation entre la vitesse, la distance et le temps:
d
Vm = dxt
> L'unité internationale de la vitesse moyenne est :
m/s
5) On considère la figure suivante :
Compléter le tableau par les mots suivants :
En mouvement au repos
A
C
Km/h
et
et l'
m. s-1
15
A
B
C
Sol…
5. Here is a tree corresponding to T(64) for an unknown recurrence relation:
32 + lg 64
8+ lg 16
2+ lg 4
2+lg4
2+lg4
8+ lg 16
2+lg4
7
7
7
7
7
7
7
7
Fill in the details for the corresponding recurrence relation:
T(n) =
T(n/4)+
T(1)=
Put scratch work below. Scratch work is not graded but may be used for regrade
partial credit.
Top screenshot is question, the rest are examples and explinations.
Chapter 7 Solutions
A Guide to SQL
Ch. 7 - What is a view?Ch. 7 - Which command creates a view?Ch. 7 - Prob. 3RQCh. 7 - What happens when a user retrieves data from a...Ch. 7 - What are three advantages of using views?Ch. 7 - Which command deletes a view?Ch. 7 - Prob. 8RQCh. 7 - Which command terminates previously granted...Ch. 7 - Prob. 10RQCh. 7 - How do you create an index? How do you create a...
Ch. 7 - Prob. 12RQCh. 7 - Does the DBMS or the user make the choice of which...Ch. 7 - Describe the information the DBMS maintains in the...Ch. 7 - The CUSTOMER table contains a foreign key,...Ch. 7 - Prob. 16RQCh. 7 - Prob. 17RQCh. 7 - Prob. 18RQCh. 7 - Prob. 19RQCh. 7 - When would you usually specify primary key...Ch. 7 - Prob. 21RQCh. 7 - Prob. 22RQCh. 7 - Prob. 23RQCh. 7 - Use SQL to make the following changes to the TAL...Ch. 7 - Create a view named ITEM_ORDER. It consists of the...Ch. 7 - Create a view named ORDER_TOTAL. It consists of...Ch. 7 - Write, but do not execute, the commands to grant...Ch. 7 - Prob. 5TDCh. 7 - Perform the following tasks: a. Create an index...Ch. 7 - Delete the index named ITEM_INDEX3.Ch. 7 - Write the commands to obtain the following...Ch. 7 - Prob. 9TDCh. 7 - Prob. 10TDCh. 7 - Toys Galore currently has a credit limit of 7,500....Ch. 7 - Use SQL to make the following changes to the...Ch. 7 - Create a view named RESERVATION_CUSTOMER. It...Ch. 7 - Create a view named TRIP_INVENTORY. It consists of...Ch. 7 - Write, but do not execute, the commands to grant...Ch. 7 - Prob. 5CATCh. 7 - Create the following indexes: a. Create an index...Ch. 7 - Prob. 7CATCh. 7 - Write the commands to obtain the following...Ch. 7 - Prob. 9CATCh. 7 - Ensure that the only legal values for the TYPE...Ch. 7 - Prob. 11CATCh. 7 - Use SQL to make the following changes to the...Ch. 7 - Create a view named CONDO_OWNERS. It consists of...Ch. 7 - Create a view named CONDO_FEES. It consists of two...Ch. 7 - Write, but do not execute, the commands to grant...Ch. 7 - Prob. 5SCGCh. 7 - Prob. 6SCGCh. 7 - Delete the OWNER_INDEX 3 index from the OWNER...Ch. 7 - Write the commands to obtain the following...Ch. 7 - Prob. 9SCGCh. 7 - Ensure that the only legal values for the BDRMS...Ch. 7 - Prob. 11SCG
Knowledge Booster
Similar questions
- Activity Time (days) Predecessors Earliest Expected Completion Time (TE) Latest Expected Completion Time (TE) 1 4 2 5 1 3456782222 6 1 7 1 4 4 6 2,3 5 3 5 5,7 9 4 7 10 3 6,9 11 5 8,9,10 12 4 11 Slack Critical Path? Yes or Noarrow_forwardI would like to know about the following concepts: 1. defragmentation 2. disk management 3. hardware RAIDarrow_forwardNode.js, Express, and Nunjucks Templates?arrow_forward
- CIT244 Program Project 3 Assignment As with any assigned program, do not wait until the last minute to start. Start early in the week the program is due so you can ask questions if you get stuck Node.js and Express and Nunjucks Templates We have gotten to the good stuff. There is a program similar to this assignment given as the last example in the lecture notes for the week that discusses node static files. This program will take more time that previous assignments. There are several examples you should study first, particularly the pizza order example program available in the examples programs folder for the week discussing static files. You should study and run the pizza order program before trying this program. The pseudo-company is called Sun or Fun, which offers cheap flights from Louisville to either Miami or Vegas. Here's a video of how it should work. NOTE: You will hear or see references to Handlebars in this video. We used to use Handlebars, but it will be Nunjucks that we…arrow_forwardhow to write the expression for the outputarrow_forwardPlease answer the exercise below(C programme)arrow_forward
- I need to list and know about some local storage options available in Windows Server 2019, thank youarrow_forwardPlease answer both Exercise 1 and2(these questions are not GRADED)arrow_forwardDiscussion 1. Comment on your results. 2. Compare between the practical and theoretical results. 3. Find VB, Vc on the figure below: 3V V₁₁ R₁ B IR, R, IR, R www ΙΚΩ www www I 1.5KQ 18₁ 82002 R₁ 3.3KQ R₂ 2.2KQ E Darrow_forward
- Agile1. a. Describe it and how it differs from other SDLC approachesb. List and describe the two primary terms for the agile processc. What are the three activities in the Construction phasearrow_forwardhow are youarrow_forwardneed help with thi Next, you are going to combine everything you've learned about HTML and CSS to make a static site portfolio piece. The page should first introduce yourself. The content is up to you, but should include a variety of HTML elements, not just text. This should be followed by an online (HTML-ified) version of your CV (Resume). The following is a minimum list of requirements you should have across all your content: Both pages should start with a CSS reset (imported into your CSS, not included in your HTML) Semantic use of HTML5 sectioning elements for page structure A variety other semantic HTML elements Meaningful use of Grid, Flexbox and the Box Model as appropriate for different layout components A table An image Good use of CSS Custom Properties (variables) Non-trivial use of CSS animation Use of pseudeo elements An accessible colour palette Use of media queries The focus of this course is development, not design. However, being able to replicate a provided design…arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
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
A Guide to SQLComputer ScienceISBN:9781111527273Author:Philip J. PrattPublisher:Course Technology Ptr
Principles of Information Systems (MindTap Course...Computer ScienceISBN:9781285867168Author:Ralph Stair, George ReynoldsPublisher:Cengage Learning
Principles of Information Systems (MindTap Course...Computer ScienceISBN:9781305971776Author:Ralph Stair, George ReynoldsPublisher: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
A Guide to SQL
Computer Science
ISBN:9781111527273
Author:Philip J. Pratt
Publisher:Course Technology Ptr
Principles of Information Systems (MindTap Course...
Computer Science
ISBN:9781285867168
Author:Ralph Stair, George Reynolds
Publisher:Cengage Learning
Principles of Information Systems (MindTap Course...
Computer Science
ISBN:9781305971776
Author:Ralph Stair, George Reynolds
Publisher:Cengage Learning