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DBMS Data Transmission and Execution

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Questions and Answers

What is the primary purpose of a program in a computer?

To resolve a problem or task

What happens to a program when it is executed?

It is loaded into the main memory and becomes a process.

What is the distinction between a program and a process?

A program is a static entity, while a process is a program in a running state.

Why must a program be loaded into the main memory before it can be executed?

Because this is a rule of computer operation. Signup and view all the answers

What is the purpose of normalization in database management?

To normalize the data. Signup and view all the answers

What is a program in programming language and what is its equivalent in DBMS?

A program in programming language and its equivalent in DBMS is a query. Signup and view all the answers

What is a process in programming language and what is its equivalent in DBMS?

A process in programming language and its equivalent in DBMS is a transaction. Signup and view all the answers

What is an example of a transaction in a banking system?

Withdrawing or depositing money is an example of a transaction in a banking system. Signup and view all the answers

What happens to the balance amount in an account when you deposit money?

The balance amount increases by the deposited amount. Signup and view all the answers

What is a transaction in the context of DBMS?

A transaction is an individual smallest unit of work. Signup and view all the answers

Study Notes

Database Management System (DBMS) and Transactions

In DBMS, a program is equivalent to a query, and a process is equivalent to a transaction.
A program is a static entity saved on a disk, and when it's executed, it's loaded into main memory and becomes a process.
Similarly, in DBMS, a query is a set of instructions to achieve a task or objective, and when it's executed, it becomes a transaction.
A transaction is an individual smallest unit of work in DBMS, similar to a process in programming.

Transactions in Real-Life Scenarios

In a banking system, transactions refer to operations such as withdrawing or depositing money.
These operations involve updating records, such as increasing or decreasing the balance amount in an account.
In DBMS, these operations are considered transactions, not processes, because they deal purely with the database.

Key Characteristics of Transactions

A transaction is a single unit of work that can be executed independently.
It's a self-contained operation that can be committed or rolled back as a whole.
Transactions are used to ensure data consistency and integrity in a database.

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Description

This quiz covers the concepts of transmitting and executing data in a database management system, including data normalization and SQL implementation.