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Database Programming

Databases are collections of tables that maintain and display information, often collaboratively; this information can be used for interaction with an application or gaining general knowledge. Questions about database engines and modifying or using them belong in this category.

8,803 Questions

Diagram of information system?

An information system typically consists of four main components: hardware, software, data, and people. Hardware refers to physical devices such as computers and servers. Software includes applications and programs that provide functionality. Data refers to information stored and processed within the system. People are the users who interact with the system to input, process, and retrieve information. These components work together to collect, process, store, and distribute information within an organization.

What is a field that might be used in a database about students?

A simple field in this database would be the name of students, though first and last names are often separated into two fields.

What is the explanation for the implication of database approach?

The implication of using Database approach against the Traditional File approach is that, it is beneficial for most organizations. The implications can be listed as follows:

1. Potential for enforcing standards.


2. Reduced application development time.


3. Flexibility.


4. Availability of up-to-date information.

What is security data at rest?

Security data at rest is data that is stored on a computer system or storage device instead of actively being used or transmitted. It is the data that is stored in a system or device and is not actively in use. This can include data stored on physical media such as disks tapes or USB drives as well as data stored on virtual media such as cloud services applications or databases. It is important to secure this data so that it is not compromised or stolen as it could be used by malicious actors for malicious purposes.

Security data at rest requires certain measures to keep it safe. These measures can include:

  • Encrypting the data
  • Limiting access to the data
  • Regularly monitoring the data
  • Using secure protocols for communication
  • Using secure authentication methods

These measures can help protect the data from being accessed by unauthorized persons or from being maliciously altered. It is important to ensure that the measures taken are sufficient to protect the data and that they are regularly updated as the data and technology evolve.

All research data must be recorded?

Yes, it is essential to record all research data to ensure transparency, reproducibility, and accuracy of results. Keeping detailed records also helps researchers to track progress, detect errors, and comply with ethical standards and data management practices.

What ways can you use to display more fields from a table or query?

To display more fields from a table or query, you can adjust the query to select additional fields by adding them to the SELECT statement. This will allow you to retrieve more specific information from the database. Additionally, you can modify the layout of your display to show additional fields by customizing the user interface or report design to include the desired information.

What is the difference between a knowledge base and a database?

Database is a collection of facts, figures and statistics related to an object. Data can be processed to create useful information.

A knowledge base is a special kind of database for knowledge management. It provides the means for the computerized collection, organization, and retrieval of knowledge

What are 3 ways SQL can access a relational database?

SELECT * FROM Customers
WHERE City LIKE 'ber%';
SELECT * FROM Customers
WHERE City LIKE '%es%';

SELECT Customers.CustomerName, Orders.OrderID
FROM Customers
INNER JOIN Orders
ON Customers.CustomerID=Orders.CustomerID
ORDER BY Customers.CustomerName;

I did a lot of SQL in my second half of my school, so I know it is not that different from this.

Why associative entity use in ER model?

Associative entities are used in Entity-Relationship (ER) models to represent relationships between two or more entities. They help to model complex relationships that have attributes of their own. By using associative entities, we can accurately capture the associations between the main entities and represent them in a clear and normalized way.

A major advantage of using existing data is?

that it can save time and resources that would otherwise be spent collecting new data. Additionally, existing data may provide a larger sample size, increasing the reliability of the results. Lastly, using existing data allows for historical comparisons and trend analysis.

Which type of software is primarily used to organize a collection of information for easy access?

Database software is primarily used to organize a collection of information for easy access. It allows for efficient storage, retrieval, and management of data in a structured manner.

What is the difference between request query string and requestform collection?

If the HTTP request method is POST, the user submitted data is in the

Request.Form() collection

If the HTTP request method is GET, then user submitted data is in the

Request.QueryString() collection

However, you can still do:

<form method="post" action="page.asp?data=value">

<input type="text" name="txtName" value="Name">

</form>

and

Request.Form("txtName") will contain "Name"

-and-

Request.QueryString("data") will contain "value"

What the Difference between structured knowledge system and semi structured knowledge system?

A structured knowledge system has well-defined rules and formats for organizing and storing information, making it easily searchable and retrievable. In contrast, a semi-structured knowledge system has some predefined rules but also allows for flexibility and subjective interpretation in organizing and storing information.

What three different databases were you think information about yourself might be stored?

Information about me could be stored in databases such as social media platforms like Facebook, professional networking sites like LinkedIn, and online shopping websites like Amazon.

What are the advantages of database in school?

Well there are many advantages like: They are easy to update .It is easy to correct errors Makes it easier and it is faster. Keep records in one place. Schools use databases to keep record of students.

How can data integrity be maintained?

Data integrity can be maintained by implementing methods such as data validation, data encryption, access controls, regular backups, and audit trails. By ensuring that data is accurate, secure, and only accessible to authorized users, organizations can safeguard their data integrity. Regular monitoring and updates to security measures are also essential in maintaining data integrity.

What does paper based information mean?

Paper-based information refers to documents, records, or data that is printed or written on paper. This information is tangible and physical in nature, making it susceptible to damage, loss, and limited accessibility compared to digital information. Examples of paper-based information include forms, reports, letters, and invoices.

Another name for a file in a database is called?

Another name for a file in a database is a "table." Tables are used to store data in rows and columns, with each row representing a record and each column representing a field or attribute.

What is the difference between controlled redundancy and uncontrolled redundancy?

Controlled redundancy refers to intentionally duplicating certain components in a system to ensure reliability and fault tolerance, whereas uncontrolled redundancy occurs unintentionally due to inefficient processes or lack of coordination. Controlled redundancy is planned and managed to enhance system performance, while uncontrolled redundancy can lead to inefficiencies and waste of resources.

What is one piece of information keyed into your database called?

A data point in a database is referred to as a field. It represents a single piece of data about a specific entity or object within a database.

What are the advantages and disadvantages of coding data?

Coded Data is used to lessen the number of keystrokes used when inputting data. For example, entering 'F' rather than Female and 'M' rather than Male. This was the user is less likely to make a spelling mistake; they will save time and they will also save file storage space.

However the user may not understand the exact coding rules and therefore make mistakes in the first instance; it will take longer to train the user and incorrect entries in a database can cause untold number of errors or mistakes.

Based on the conceptual framework of levels of data the most basic and smallest logical unit of information is a?

The most basic and smallest logical unit of information is a bit. A bit represents a binary value of either 0 or 1, and is the building block of all digital data.

Mention 3 situations where it is not desirable to use dbms?

  1. For small-scale projects with minimal data storage requirements, using a DBMS may introduce unnecessary complexity and overhead.
  2. In scenarios with strict real-time constraints or extreme performance requirements, the additional processing time involved in interacting with a DBMS may not be acceptable.
  3. When the data is highly unstructured or varies significantly in format, a DBMS may not be the most efficient or effective storage solution.

What is a piece or item of information in a database known as?

A piece or item of information in a database is typically referred to as a "data point" or a "database record." It represents a specific value or set of values within a database structure that can be accessed, edited, or manipulated according to the needs of the user or system.