What is a primary key? Multiple Choice A field (or group of fields) that uniquely identifies...
What is a primary key?
Multiple Choice
-
A field (or group of fields) that uniquely identifies a given record in a table.
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A primary key of one table that appears as an attribute in another table and acts to provide a logical relationship among the two tables.
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Characteristics or properties of an entity.
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A field (or group of fields) that uniquely identifies a given attribute in a table.
Homework Answers
1. A. A field or group of fields that uniquely identifies a given record in a table.
When we consider a primary key, unlike a foreign key, we view it
as having a characteristic value, unique that allows us the ability
to identify a given entity in a database table.
Add Answer to:
What is a
primary key?
Multiple Choice
A field (or group of fields) that uniquely identifies...
A foreign key is defined as a minimal super key that is new that does not...
A foreign key is defined as a minimal super key that is new that does not contain subset of attributes that is itself a super key. an attribute (or combination of attributes) that uniquely identifies each entity in a table. a key that is used strictly for data retrieval purposes. an attribute (or a combination of attributes) in one table whose values match the primary key in another table or whose values must be null.
QUESTION 1 What is the most common relationship within a relational database? Select the best answer...
QUESTION 1 What is the most common relationship within a relational database? Select the best answer from the following. One-To-One relationship. o One-To-Many relationship. Many-To-Many relationship. Zero-To-Zero relationship. QUESTION 2 What is an "entity'? Select the best answer from the following. An entity, for our purposes, is the same as a table in the database. An entity represents one of the columns in an individual table. There are no entities in a relational database. Entities are only part of NoSQL...
Every runner is required to solicit sponsors to help raise money for the event. There are...
Every runner is required to solicit sponsors to help raise money for the event. There are two types of sponsors – corporate and personal. Design a second table that will store data about the sponsors for each runner. 1. Make a list of the field names and field types you plan to include in the table. What fields are you going to put in this table? What are their field types? Would it make sense to reduce any of the field sizes?...
The employee is table, the best candidate for primary key is Select one: a. Department ID...
The employee is table, the best candidate for primary key is Select one: a. Department ID b. Employee hiredate c. Employee ID d. Employee salary Question 2 A primary key can be composed of more than one attribute. Select one: True False Question 3 A foreign key allows you to join two tables. Select one: True False Question 4 Given two tables, department (dept_id, dept_location, dept_name) and EMPLOYEE(emp_id, emp_name, emp_dept_id, emp_name, emp_salary), which attribute (column) is the foreign key? Select...
Multiple Choice A) The Product ID will be included as a foreign key in the Sales...
Multiple Choice
A) The Product ID will be included as a foreign key in the Sales
Orders table.
B) The Sales Order ID will be included as a foreign key in the
Products table.
C)The Quantity Ordered field will be included as a foreign key
in the Products table.
d) A new table will be created that contains both Sales Order ID
and Product ID as its composite primary key.
* C Search Textbook Solutions x C Multiple Choice A)...
Match the keyword with its function Makes something new, typically a table Provides values to a...
Match the keyword with its function Makes something new, typically a table Provides values to a table Declares a constraint on a table Chooses or reorders columns Declares which tables are present Identifies records of interest Renames either a column or a table Combines two tables or queries with equivalent structure Finds records that are shared between two tables or queries Determines items from a table or query that are not in the other table or query Extends records from...
Describe briefly a database application case of your choice and represent your data in terms of...
Describe briefly a database application case of your choice and represent your data in terms of 3 linked (via foreign key/s) tables. List their respective primary key and foreign key/s if any. Your database application case should be different from those already covered in the lectures or practicals. For the database case in the Additional Exercises of the previous practical, complete the proper construction of all the 5 tables in SQL, building all the pertinent primary and foreign keys there....
This is questions of Accounting Information Systems 1) Fo a database. Each row in this spreadsheet...
This is questions of Accounting Information Systems
1) Fo a database. Each row in this spreadsheet represents a: ur Tet Industries tracks customer information using various Microsoft Excel spreadsheets stored in a. Field b. Record c. File d. Database 2) A d tables is a. What is the correct term for the database field in Table 1? latabase field in Table 1 that serves as a unique identifier in Table 2 and is used to link both of the a....
erms Matching Match the key terms with their definitions. Write the key term letter by the...
erms Matching Match the key terms with their definitions. Write the key term letter by the appropriate numbered definition k. Foreign key 1. Multitable query m. Nul a. AND condition b. Auto Number c. Caption property d. Cascade Delete Related Records e. Cascade Update Related fields f. Comparison Operator 8. Criteria row h. Data redundancy i. Data type 1. Field property o. OR condition p. Query q. Referential Integrity r. Simple Query Wizard 5. Wildcard Special character that can represent...
6. With respect to database systems, which of the following statement(s) is (are) true? a. The...
6. With respect to database systems, which of the following statement(s) is (are) true? a. The physical view of data is how people conceptually organize and understand the relationships among data items. b. The DML builds the data dictionary, creates the database, describes logical views for each user, and specifies security constraints. c. A record layout shows the items stored in a file, including the type of data stored and both the order and length of the data fields. d....
QUESTION 1 What is the most common relationship within a relational database? Select the best answer from the following. One-To-One relationship. o One-To-Many relationship. Many-To-Many relationship. Zero-To-Zero relationship. QUESTION 2 What is an "entity'? Select the best answer from the following. An entity, for our purposes, is the same as a table in the database. An entity represents one of the columns in an individual table. There are no entities in a relational database. Entities are only part of NoSQL...
Multiple Choice
A) The Product ID will be included as a foreign key in the Sales
Orders table.
B) The Sales Order ID will be included as a foreign key in the
Products table.
C)The Quantity Ordered field will be included as a foreign key
in the Products table.
d) A new table will be created that contains both Sales Order ID
and Product ID as its composite primary key.
* C Search Textbook Solutions x C Multiple Choice A)...
This is questions of Accounting Information Systems
1) Fo a database. Each row in this spreadsheet represents a: ur Tet Industries tracks customer information using various Microsoft Excel spreadsheets stored in a. Field b. Record c. File d. Database 2) A d tables is a. What is the correct term for the database field in Table 1? latabase field in Table 1 that serves as a unique identifier in Table 2 and is used to link both of the a....
erms Matching Match the key terms with their definitions. Write the key term letter by the appropriate numbered definition k. Foreign key 1. Multitable query m. Nul a. AND condition b. Auto Number c. Caption property d. Cascade Delete Related Records e. Cascade Update Related fields f. Comparison Operator 8. Criteria row h. Data redundancy i. Data type 1. Field property o. OR condition p. Query q. Referential Integrity r. Simple Query Wizard 5. Wildcard Special character that can represent...
6. With respect to database systems, which of the following statement(s) is (are) true? a. The physical view of data is how people conceptually organize and understand the relationships among data items. b. The DML builds the data dictionary, creates the database, describes logical views for each user, and specifies security constraints. c. A record layout shows the items stored in a file, including the type of data stored and both the order and length of the data fields. d....
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