Answered: Each key that meets the criteria for a…

Each key that meets the criteria for a primary key is called functional key a O lookup key b O potential key .c O candidate key .d O

Oracle 12c: SQL

3rd Edition

ISBN:9781305251038

Author:Joan Casteel

Publisher:Joan Casteel

Chapter1: Overview Of Database Concepts

Section: Chapter Questions

Problem 7RQ

See similar textbooks

Related questions

Q: Field Туре Null Key Default Extra OFFICE_NUM decimal(2,0) NO PRI NULL ADDRESS char(25) NO PRI NULL…

A: Given Table name: LARGE_PROPERTY Attributes: OFFICE_NUM, ADDRESS, BDRMS. FLOORS,MONTHLY_RENT,…

Q: Student records are stored in ID number order, but accessed by grade-pointaverage for a report.…

A: Please find the answer below :

Q: How is a foreign key different from a primary key?

A: Primary key is an attribute of a relation which is used to uniquely identity each tuple of the…

Q: key and foreign keys (arrows) must be identified. Code BANK Name Addr Phone BRANCHES Acct no San…

A: Here the entity BankBranch is a weak entity and therefore we need to include primary key of Bank as…

Q: A(n) is a field that contains unique data for each record in the table but is not used as the…

A: Secondary key It is a candidate key that is not selected as primary key . For example, we have…

Q: 1. Use the following table to answer the questions below. Table name: Products Column Role Data Type…

A: We have to extract year from the Date filed and then the year has to be 2021 Now, we have to count…

Q: Which standard form mandates that no non-key attribute be functionally dependent on a portion of the…

A: Introduction: Relation R is in the second standard form (2NF) if it is in the first normal form…

Q: An index is automatically created for a FOREIGN KEY constraint. Select one: a. True b. False

A: When you define a foreign key constraint in database table, an index will not be created…

Q: A composite key is a column containing unique information. a. True b. False

A: To uniquely identify a record, a composite key consists of multiple attributes. However, this is not…

Q: Q. Based on the given table, solve the following queries. a) Write the SELECT command to display…

A: Note:- "since you have posted multiple questions and according to our guidelines we are authorized…

Q: 8. Create the following table DEPT MASTER: DEPTNO DNAME LOC 15 characters 2 digits Primary key 25…

A: <!DOCTYPE><html> <head><style> table, th, td { border: 1px solid…

Q: Describe how a foreign key is different from a primary key

A: Difference between foreign and primary key:

Q: The primary key and the candidate key must be distinguished.

A: Primary key The phrase main key refers to a candidate key that the database designer selects as the…

Q: Employee EMPNO NUMBER(4) - Primary Key VARCHAR2(10)- Not Null VARCHAR2(9) DATE NUMBER(7,2) NUMBER(2)…

A: The Answer is in below step...

Q: Which of the following are the features of a primary key? a. Unique value b. Not null c. All d. Not…

A: Answer: c

Q: QUESTION 5 Exercise: Create ONE statement that will add the following TWO rows to the terms table.…

A: Statement to add two rows in terms table . Using only single statement .

Q: What is the meaning of the primary key?

A: A primary key, sometimes known as the main keyword, is a unique identifier for each entry in a…

Q: What is a unique key?

A: What is a unique key?

Q: Create an Oracle sequence named CUST_NUM_SEQ to generate values for customer numbers. The sequence…

A: CREATE SEQUENCE CUST_NUM_SEQ START WITH 2000 INCREAMENT BY 1 NOCACHE NOCYCLE;

Q: keys are noted in the superscript. Customer = {customerlID, firstName, lastName, income, birthDate}…

A: All tables below.

Q: C. Refunds_697 REFUNDID ORDERID REFUNDDATE REFUNDAMOUNT 1 1 02-SEP-16 5 2 18-SEP-16 18 Refunds…

A: Given:

Q: 2) Create a SELECT statement that returns the count, average, max and min of the invoices submitted…

A: SQL: SQL is defined as Standard Query Language it is mainly used for the manipulation of the…

Q: 7. Create the following table : EMP_MASTER Empid Empname 4 digits Deptid Mgr 4. characters digits…

A: The SQL CREATE TABLE Statement: The CREATE TABLE statement is used to create a new table in a…

Q: how to Create two or more MySQL VIEWS using the Pizza Store Database. Each of the Views must have a…

A: Given: Create two or more MySQL VIEWS using the Pizza Store Database. . Conditions: Each of the…

Q: When you want to add a foreign key, the following must be true The foreign key must have the same…

A: A foreign is a database key that is used to link two tables together. The FOREIGN KEY constraint…

Q: The InstantRide Finance team also wants to analyze travels where more than the average discount rate…

A: For given InstantRide Finance team database, need to write query to create a SELECT statement which…

Q: What is a primary key?

A: Primary key: Primary key refers to an attribute which is used to uniquely recognize each tuple in…

Q: II. In the below given table, identify the correct table names & Keys after 3NF. Table Name Primary…

A: Below is the answer:

Q: Explain the key terms Super Keys, Candidate keys and Primary Key.

A: Ans : Super Key: it is a group of single or multiple keys which is used to identifies rows in the…

Q: Assume that the Authors table is already built in the database with the following specifications:…

A: The query to create Books table is as in next step:

Q: Use the following table to answer the questions below: Table name: Customers Column Name Role Data…

A: As per our guidelines, we are supposed to answer only 1st 3 parts. Kindly repost the remaining…

Q: ____________ is a combination of two of more attributes used as a primary key

A: GIVEN: ____________ is a combination of two of more attributes used as a primary key

Q: Lab 3 Q1. Create the following tables: A. Carrier Attribute name carrierID Туре Varchar2 Size…

A: Question 1) Crate table queries The "CREATE TABLE" command is used in sql to create table in a…

Q: First normal form says: a. No nonkey columns depend on another nonkey column b. Every column…

A: First Normal Form says 1: It contains only atomic values 2:attrubute of table doesn't hold multiple…

Q: If the functional dependencies are consistent with the above relation, put TRUE. If they are not,…

A: A functional dependency X->Y exist if the unique value of X determines a unique value of Y. If…

Q: ?Which of the following statements is not true about primary key fields The primary key field is the…

A: Primary key the primary key field is a linking field in the table of the one side of a one to many…

Q: in sql An index is automatically created for a FOREIGN KEY constraint. Select one: a. True b.…

A: b) False

Q: Explain the difference between a primary key and a candidate key.

A: GIVEN: Explain the difference between a primary key and a candidate key.

Q: Use the following table to answer the questions below: Table name: Customers Column Name Role Data…

A: Create a table Customers with the below query: create table Customers(customerID char(5) PRIMARY…

Q: PLZ HELP WITH THE FOLLOWING: make the following work select MOVIE_NAME, MOVIE_YEAR from MOVIE…

A: Given, List movie title and movie year for movies that have a movie cost is greater than…

Q: What is the difference between a main key and a candidate key?

A: Foundation: Candidate keys are selected to uniquely identify tuples in a database, and the primary…

Q: What are the main differences between Primary key and Unique Key?

Q: QUESTION 2 Candidate keys O Chosen as preferred way to identify a row All of these None of these…

A: Given:

Q: 10. The minimal set of super key is called a. Primary key b. Secondary key c. Candidate key d.…

A: Please see the next step for answer.

Question

100%

Each key that meets the criteria for a primary key is called
functional key .a O
lookup key b O
potential key .c O
candidate key d O

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1 Introduction

VIEW

Step 2 Solution

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

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

What field type would be the best for a integer based primary key? Group of answer choices Autonumber Number Short text Long number
Which of the following are the features of a primary key? a. Unique value b. Not null c. All d. Not repeated
{ String str = tf5.getInt("ID"); Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver"); Connection con = DriverManager.getConnection("jdbc:sqlserver://NOMBUSO1806:1433;databaseName= Employee ATM", "NOMBUSO1806", "mysql1234"); // write your database username and password PreparedStatement st = con.prepareStatement("select * from Employees where ID=?"); // Search with ATM ID st.setString(1, str); ResultSet rs = st.executeQuery(); // Excuting Query if (rs.next()) { String s = rs.getString(1); String s1 = rs.getString(2); String s2 = rs.getString(3); // Sets Records in TextFields. tf1.setText(s); tf2.setText(s1); tf3.setText(s2); my getInt() is throwing an error that the method is not found. what should i do?
Every supper key is also a primary key True or false?
22. The primary key is selected from the: a. composite keys b. determinants c. candidate keys d. foreign keys
Determine the primary keys. This step is done normallywhile creating ER/EER.
q3- Which of the following is NOT correct when referring to a primary key a. Changes over time b. Unique c. Cannot be null d. Non-repeating Clear my choice
A foreign key should normally have the same name as the primary key from which it was copied. Group of answer choices True False
Child row is a related row where there is a ? Primary key Foreign key Candidate key Composite key
9. _________________ allows you to write code to query databases in a language specific manner 1. DbSet 2. database 3. LINQ 4. connection string
( Please answer this question immediately I do not have time ) Use the following table to answer the questions below: Table name: Books Column Name Role Data Type Length Constraint bookID Stores the ID of a book Number 5 Primary key bookTitle Stores the title of a book Varchar2 50 - bookISBN Stores the ISBN of a book Number 13 Cannot be null and duplicated publicationDate Store the publication date of a book Date - Cannot be null bookPrice Stores the price of a book Number 2,2 Cannot be null a. Write in SQL a command that creates the table Books according to the above description b. Write in SQL a statement that adds a new column named publisherID of type Char(10). This column should be defined as a foreign key that relates the table Books to the table Publisher c. Write in SQL a command that deletes the books that are published before 20-Aug-2010 d. Write a SQL query that displays the number of books that are published in the year 2018 e. Write in SQL a…
Display the book title and category for all books in the Children and Cooking categories. Create three different queries to accomplish this task: a) a search pattern operation, b) a logical operator, and c) another operator not used in a or b.