Differentiate between super key, candidate key and primary key with an example.

Q: Statement: The columns listed in a GROUP BY command must come from the columns listed in the SELECT…

A: Statement: The column listed in the GROUP BY command must come from the columns listed in the SELECT…

Q: How do you pronounce enhanced key? What does enhanced key mean?

A: An improved keyboard is a kind of keyboard that comes standard with virtually all modern PCs. It…

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: Discuss the idea of a candidate key as a property of a composite primary key.

A: Intro A candidate key is a single or a collection of keys that uniquely identify rows in a database.…

Q: Explain the difference between main key, candidate key, and superkey..

A: Differentiation between main key, candidate key, and super key A super key is any collection of…

Q: Please see the attached and assist with below question. Using the “Aggregates” worksheet, complete…

A: The given problem is to complete the given excel for an income tax calculation using MS EXCEL and…

Q: Distinguish between the phrases primary key, candidate key, and super key.

A: Primary key The term primary key is used to denote a candidate key that is chosen by the database…

Q: 1. What are the four main types of keys? 2. What is the purpose of a candidate key? 3. State four…

A: Four main types of keys : Keys: A key is an attribute or a set of attributes that help to uniquely…

Q: Questions: 1- Display the IDs of all instructors who have never taught a couse and display their…

A: As per Bartleby policy I am allowed to answer specific number of questions (including sub-parts) on…

Q: Part of the primary key may not determine a non-key field.

A: If any relation/table is in second normal form means it dont have any partial functional…

Q: Give an example of the word "foreign key

A: Please find the answer below :

Q: A table stores the data for all the members of an exotic resort. Members are identified by these…

A: The easiest way to call all of these members together in C++ is to store them in an array called…

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: Each key that meets the criteria for a primary key is called functional key a O lookup key b O…

A: According to the asked question, the solution is given below with a proper explanation.

Q: Describe a primary key, candidate key, secondary key, foreign key, and a combination key. Use your…

A: Primary key: Primary key is defined as the attribute in a table which can uniquely identifies all…

Q: Recite the rule about columns in SELECT when a GROUP BY clause is used.

A: As per the bned policy we are supposed to answer only one question at a time. As the question is not…

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: Describe the concept of a candidate key as a component of a composite primary key.

A: Required: Talk about the notion that a candidate key is a feature that makes up a composite primary…

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: Please help with the following What is a valid GROUP BY clause for the following SELECT list?…

A: Given:   Please help with the following What is a valid GROUP BY clause for the following SELECT…

Q: The CUSTOMER table’s primary key is CUS_CODE. The CUSTOMER primary key column has no null entries,…

A: Required:   The CUSTOMER table’s primary key is CUS_CODE. The CUSTOMER primary key column has no…

Q: explain the function of the FOREIGN KEY definition.

A: Functions of Foreign Key: It ensures that data is integral It is a constraint that prevents actions…

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: A table in ____________ contains no transitive dependencies.   Question 61 options:   1)  1NF   2)…

A:

Q: The table shown in figure below lists some sample records of dentist/patient appointment data. A…

A: Actually, given information: StaffNo DentistName Pat. No Pat. Name App. Date App. Time…

Q: Using the company schema, when creating the "works_on" table, the foreign key should be specified…

A: Foreign key specified The foreign key is used for linking two tables together. It is also known as…

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

A: Below is the answer:

Q: Give an example of a primary key

A: Answer: Primary Key: It is a key that can uniquely identify the each record in a table.

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: Composite primary key can be defined at table level only. Select one: True False

A: As per the question asked the, the proper solution of the question is given in below step:

Q: According to the figure, the primary key is :

A: The correct answer is ProjectID. Explanation is provided in the 2nd step

Q: difference between  Primary key; Composite key

A: Primary Key is a column in a table from which can  uniquely identify each row. It is a single…

Q: Why it is recommended to specify a unique index for each primary key.

A: To be determine: Why it is recommended to specify a unique index for each primary key.

Q: Which normal form requires that, no non-key attribute should functionally depend on a part of the…

A: Answer to the above question of no non-key attribute should functionally depend on a part of the…

Q: :When the primary key is not a composite key, the relation is said to be in at least fifth normal…

A: Lets see the solution.

Q: Explain Primary Key?

A: Definition: A primary key is a special column (or combination of columns)of the relational database…

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: 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: according to tables below, Create 5 views that are reasonable

A: create view ticketDetail as select ticket.ticket_number, seat_number,flying_class,customer_name from…

Q: Which normal form requires that, no non-key attribute should functionally depend on a part of the…

A: Correct Answers : 1st, 2nd, 3rd Normal form

Q: C. Write the following queries to retrieve the information detailed below. Average number of…

A: As per the guidelines we have given answer for the first three subparts of your question. the…

Q: Explain the difference between Primary Key and Foreign Key , give example

A: We are going to understand difference between Primary Key and Foreign Key along with examples.

Q: Create a query of renters not qualified to rent, list who rented boat unique ID, Renter name, Renter…

A: Actually, SQL is a  structured query language.

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?

A:

Q: 1) Explain the key terms Super Keys, Candidate keys and Primary Key.

A: Keys:- There are different types of keys in a relational database and play an important role in it.…

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.

Q: In SQL A foreign key must exist in both tables that have a relationship. Select one: a. True b.…

A: Given: In SQL A foreign key must exist in both tables that have a relationship. Select one: a.…

Procedures in SQL

A pre-compiled stored procedure is a logical unit made up of one/more SQL statements (SQL stands for Structured Query Language). The database server saves it as an object. An SQL procedure is a collection of SQL statements and logic that is written and saved to accomplish a specified goal. An SQL procedure consists of a name, a parameter list, and a set of Transact-SQL statements. Stored procedures are stored as named objects in SQL Database Server.