Assume a university database's student table includes StudentID, Major, Age, MaritalStatus, and HomeZipCode indexes (all secondary keys). Assume the university wanted a list of MIS or computer science majors over 25 who were married and from 45462 OR computer engineering majors over 25 who were single. How can indexes guarantee only these records be accessed?

Q: Given the default schema of a database: Orders 123 Orderld OrderDate ADC OrderNumber 123 Customerld…

A: A Foreign key is a field in a table that is used to reference the Primary key of another table. It…

Q: 1 SELECT COUNT(Employee.name) From Employee 2 JOIN Team ON Team.id = Employee.team 3 After executed,…

A: SELECT COUNT(Employee.name) FROM Employee JOIN Team ON Team.id = Employee.team This query performs…

Q: For each table, identify the primary key and the foreign key(s). If a table does not havea foreign…

A:

Q: List two reasons why null values might be introduced into the database.

A: Introducing null values into the database: The two reasons for introducing null values into the…

Q: erry must be correct.  Refer the attach tables.

A: This has been coded using MySQL.

Q: When do changes generated by DML operations become stored in database tables permanently?

A: The answer is given below,

Q: id in Company references id in Corporation. cid in Department references cid in Company. Each option…

A: As per our guidelines we are supposed to answer only one question. Kindly repost other questions as…

Q: i want to insert the 2 csv into a database  lifespan.csv

A: Approach:   1- Don't import any CSV files directly.  2- First, create a database, inside the…

Q: hy index should not be created for every column of every table of

A: Required: Why index should not be created for every column of every table of database.

Q: In 8-bit binary floating point, how do you write 6.75 as a mantissa and an exponent?

A: Decimal representation converted to 8-bit floating point: Convert the decimal value's integer…

Q: Write the relational schema for UNF, 1NF, 2NF and 3NF for this table.

A: PETID PETNAME PETTYPE PETAGE OWNER VISITDATE PROCEDURE 246 ROVER DOG 12 SAM COOK JAN…

Q: With the help of a select operation in a relational database, one may reduce the amount of space…

A: Erroneous interpretation. The SELECT operation in a relational database is used to retrieve specific…

Q: re there any other database relationships besides 1 M and 1:1? If so, describe the relationship and…

A: Required: Are there any other database relationships besides 1 M and 1:1? If so, describe the…

Q: By the use of a select operation, a relational database may reduce the number of columns in a table…

A: The select operation is essentially an operation that searches the data that is included in the…

Q: Practical 1: Write a menu driven program that runs till the user desires, Menu is given below with…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: The main aim of your project is to create a database schema consists of 3 tables suggested by…

A: We have to create a database schema consisting of 3 tables suggested byyourself and simulate it…

Q: What role do referential integrity constraints play in a relational database?

A: In the realm of databases integrity constraints play a role in ensuring the accuracy and reliability…

Q: With the help of a select operation in a relational database, one may reduce the amount of space…

A: The select operation is essentially an operation that searches the data contained inside the table…