Computers And Technology High School

what solution puts the stolen vehicles database in 3nf by breaking up this one big table into several tables?

Answers

Answer 1

To convert the stolen vehicles database into 3NF (Third Normal Form), the big table should be broken down into several smaller tables that contain the necessary information.

The process involves the following steps:
1. Identify the columns that contain the same data in multiple records, and create a new table for each of these columns.
2. Make sure that each table contains a primary key that uniquely identifies a record, as well as other attributes which together form a composite key.
3. Define relationships between tables, either one-to-one or one-to-many.
4. Make sure that each table contains only the information that is necessary for it, and that all other data is moved to other tables.
5. Check for anomalies such as insertion, update, and deletion, and take care of them by creating more tables or modifying the existing ones.

By following these steps, the big table can be broken down into several smaller tables and the stolen vehicles database can be converted into 3NF.

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Related Questions

Even when a good database blueprint is available, an applications programmer's view of the data should match that of the manager and the end user.a. Trueb. False

Answers

The statement "Even when a good database blueprint is available, an applications programmer's view of the data should match that of the manager and the end user" is True.

A database is a structured set of data kept in a computer that is arranged so that it can be quickly retrieved, updated, and managed. A database's key feature is that it organizes data into tables that are related in some way. Information in a database is organized so that it is simple to access, control, and update.

The relational database is the most prevalent type of database. A data model is a graphical or symbolic description of data structures and connections used to define data architecture, manipulate data, or enforce data integrity rules. A data model's aim is to standardize the design of data in such a way that communication between different people and applications is seamless. A database blueprint is a model of a database that is used to plan and design a database structure. Then, the data model is designed to meet those requirements.

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Which of the following statements will assign the address of the variable int myInt to the pointer int* myPtr?
a.int* myPtr = *myInt;
b.int* myPtr = myInt;
c.int* myPtr = &myInt;
d.int& myPtr = &myInt

Answers

Option C: int* myPtr = &myInt; is the following statement used to assign the address of the variable int myInt to the pointer int* myPtr.

What are pointers and addresses?

In C++, pointers are variables that store the memory address of another variable. A pointer is essentially an address. It points to a memory address, indicating where a variable is stored in memory. A pointer should be declared as the data type of the variable it points to, followed by an asterisk.
For example, if a pointer points to an int, it should be declared as int*. A memory address is a unique identifier for a specific memory location. It is a reference point for a particular byte of memory. Each byte in memory has a distinct memory address.

How to assign the address of a variable to a pointer?

To assign the address of a variable to a pointer, use the address-of operator & followed by the variable name. For example, to assign the address of the variable int myInt to the pointer int* myPtr, use the following statement: int* myPtr = &myInt.

Therefore, option C, int* myPtr = &myInt, is the correct answer.

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