A forcign key in a relational database table is a(n): A Set of attribute values in a table. B Combination of attributes in a table. C Atribute in one table that is an attribute in another table. D Column of a table.

Q: When identifying functional dependencies, the sequence/ordering of columns in a database table is…

A: As per our policy, we can solve one question at a time if you need the second answer please post it…

Q: For the given database schema write SQL query to create the 'User table’ and the 'Login table' also…

A: Tables in SQL are created using CREATE statement. Syntax: CREATE TABLE Table_Name(Column1_Name…

Q: For the given database schema write SQL query to create the 'User table' and the 'Login table' also…

A: Task: We need to write the sql query to create the user table and Login table and embedded all the…

Q: For the given database schema write SQL query to create the 'User table' and the 'Login table' also…

A: Our task: We need to write the sql query to create the user table and Login table and embedded all…

Q: A table in third normal form is one which: A Has only one primary key. B Is linked to another table…

A: A table is in 3NF (third normal form) if the table is in 2NF and there is no transitive dependency…

Q: Consider a database with the following tables: Using sql query or steps Patient(PatientID.…

A: I give the code along with the output screenshot

Q: Suppose your database's referential integrity isn't enforced.

A: The importance of data integrity in protecting yourself from data loss or a data leak cannot be…

Q: Question- For this problem create a table called instructor_course_nums within the university…

A: --------------------------------------------------------------------------------/* Banking DDL…

Q: Given the tables create table T (A int primary key, B int); create table U (C int primary key, A…

A: As mentioned: There are two tables. Table T and Table U Table T has A(P.K), B two columns. Table U…

Q: We have a relational database that contains the table ‘Staff’. The table ‘Staff’ consist of columns…

A: Answer : In the given question we have a table staff and we have a three column in this table 1)…

Q: Suppose a database has the following relations: - ORDER_T (Order_ID, Order_Date, Customer_ID,…

A: Given database consists of three tables Order_T, Product_T, Order_line with some attributes.  (a)…

Q: We have a relational database that contains the table ‘Staff’. The table ‘Staff’ consist of columns…

A: Answer : Here we have given staff table which have three column and here we need to retrieve only…

Q: A select operation pares down a table in a relational database by eliminating columns according to…

A: The select operation is basically an operation which searches data in the table and acquire or…

Q: Let the following database schema be given. Person(idnumber, name, dob, mother, father) primary key…

A: a) Will use CTE to prepare a hierarchical result set WITH #results AS(SELECT idnumber,nameFROM…

Q: Since no particular student is affiliated with a number, disclosing the total of all financial…

A: Sensitive data Sensitive data is information that can not be made public. Data pertaining to the…

Q: In a database, what happens if the referential integrity constraint is not maintained? Is it…

A: - The goal is to identify database problems caused by a loss of referential integrity. - If we don't…

Q: A table in third normal form is one which: A Has only one primary key. B Is linked to another table…

A: A  database is in third normal form if it: is already in second normal form it has no non-key…

Q: A table in third normal form is one which: A Has only one primary key. B Is linked to another table…

A: Third Normal Form (3NF):A relation is in third normal form, if there is no transitive dependency for…

Q: A table in third normal form is one which: A Has only one primary key. B Is linked to another table…

A: Given:

Q: consists of undertak es NextOKin Paper frstname papercode Assessment lastnam e H relationship phone…

A: Required:   We have to develop Sql queries according to the given database schema.

Q: A select operation in a relational database decreases the size of a table by deleting columns that…

A:

Q: A select operation in a relational database decreases the size of a table by deleting columns that…

A: The Size of a table can be decreased by deleting the records in table Record is nothing but a row in…

Q: Consider a database with the following tables: Patient(PatientID. PatientName, NumberOfVisits)/…

A: Problem Statement: Consider a database with the followingtables: Patient(PatientID.…

Q: The aim of assignment 1 is to implement a database schema and execute different types of SQL queries…

A: Note: In your schema, many table contain multiple primary key which is not possible in SQL database…

Q: We have a invoice table in the next page. Convert it to a data in key value database.

A: Note: As per Bartleby  guideline i have solve only one question (only 1) at a time so please repost…

Q: In a relational database, a select operation is used to minimise the size of a table by eliminating…

A: The select operation is essentially a search and acquisition or retrieval process that looks for…

Q: In a relational database, a select operation is used to minimise the size of a table by eliminating…

A: Select operation in a relational database is utilized to decreased the size of the table by…

Q: Given the following relation: Student (StudentID, studentName, StudentAddress, MobileNumber) Write a…

A: The %ROWTYPE attribute provides a record type,which can hold a list of the table(or view) of same…

Q: 32. In a relational model, relations are termed as a. Tuples b. Attributes c. Rows d. Tables

A: The relational data model is a representation of the relationships between different relations in a…

Q: Suppose a database has the following relations: · ORDER_T (Order_ID, Order_Date, Customer_ID,…

A: The answer is

Q: Consider the following schema for a company database and answer the following questions: DEPARTMENT…

A: The  question did not say which DBMS platform has to be used.So MS SQL Server has been used to…

Q: A select operation in a relational database is used to cut down on the size of a table by deleting…

A: Given: In a relational database, a select operation is used to reduce the size of a table by…

Q: To remove a relation from an SQL database, we use the ______ command. a) Delete b) Purge c) Remove…

A: Given: To remove a relation from an SQL database, we use the ______ command.a) Deleteb) Purgec)…

Q: 1. Assume A and B are items. If the support count of A is 10 and that of B is 10, then what are the…

A: let's answer all: 1.    so, minimum support  = 0 , maximum support = 10

Q: For the following database scheme Employee(empNo fName,.IName.address.DOB.sex.position.deptNo)…

A: An SQL statement to list the project number, project name and the number of employees in the project…

Q: A select operation in a relational database is used to reduce the size of a table by deleting…

A: Select operation in a relational database is used to reduced the size of the table by deleting…

Q: partial dependencies and transitive dependencies

A: I have provided hand written solution for both with table example and definition----- First provided…

Q: Consider the given bank database schema given in question (2). Write a SQL trigger to carry out the…

A: The complete answer is given below with explanation.

Q: First step is to built the database schema using the following query- CREATE SCHEMA `organization`…

A: The new attributes will get added in the primary table form in the database table .

Q: n a database, what is an unnormalized relation? Is it a connection in the

A: A unnormalized relation refer to a relation which does not meet any normal form condition. The…

Q: Convert the following record to a normalized data structure up to 3NF showing all attributes…

A: The ask is to normalize the data structure to 3NF for the following data: Grade-Report Number…

Q: An attribute in the context of a rela latabase may be defined as: A Something about which data B A…

A: Please find the answer below :

Q: How many local descriptor tables can exist?

A: There are many local descriptor tables that can exist as each program or task have its own local…

Q: In database management system, the current set of instance or database snapshot is also called a.…

A: Required:   In database management system, the current set of instance or database snapshot is…

Q: Snapshot of the dta in the database at a given instant of time is called a. Database Schema b.…

A: In a computer system, we can define a snapshot is a state of the system at a given point of time.

Q: Create Relational Model of the given ERD. Highlight the mandatory foreign keys in your relational…

A: Objective: An entity-relationship diagram is given including several relations like Book, Publisher,…

Q: a) Write an SQL query to determine the total number of hours and the total number of lessons Tutor…

A: Solution : (a) Query :select SUM(Hours) as TotalHrs,sum(Lessons) as Totallsn from TUTOR_REPORT where…

Q: What is alternate, artificial, compound and natural key?

A: Alternate key: Alternate keys are just candidate keys except the primary keys. Artificial key:…

Q: For the given schema, write relational algebra for the following queries. Student (id, name)…

A: 1). Answer πname(σcs3020=code(Student⋈EnrolledIn))   2). Answer πlecturer(σcode=cs1500 OR…

Q: How do surrogate keys obtain their values?

A: Surrogate keys area unit typically utilized by operational systems to spot the business object.…