Database Programming

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 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.

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.

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.

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.

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.

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.

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.

http is the odd one out because it is not a type of database management system (DBMS) like SQL, DB2, and Sybase. HTTP stands for Hypertext Transfer Protocol and is used for transmitting data over the internet.

There are various sources available to assist in analyzing data information, such as statistical software like R or Python libraries like Pandas and NumPy. Additionally, data visualization tools like Tableau or Power BI can help in exploring and visualizing data. Online platforms like Kaggle or GitHub also provide datasets and resources for data analysis.

program data dependence - when changes in program requires changes to data access by program

poor security - lack of security of most of the data make it hard of management to control who is accessing and making changes to the data

lack of data sharing and availability - information cannot flow freely across different functional area.

- if the user finds data in 2 different places, the accuracy of the data cannot be trusted.

A relational database is a database that contains tables linked by common fields. These common fields are used to establish connections between the tables and to retrieve related data across multiple tables using queries.

SELECT FROM clause

Eg:

SELECT <select_options>

FROM <table_name>

[ WHERE <condition> ]

A detailed description of all data used in the database is called a data dictionary. It centralizes information about the structure of the database, including data types, relationships, constraints, and metadata. This resource is crucial for understanding and managing the database effectively.

Specialization in database management refers to the process of creating subtypes from a supertype entity in an entity-relationship (ER) model. It allows for the customization and organization of data based on unique characteristics within a specific subset of the main entity. This helps in categorizing and structuring data more efficiently.

The smallest unit of information you can access in a database is typically a single data element within a specific field of a record or a single cell in a table. It could be a single piece of data such as a number, text, date, or boolean value.

Non-repudiation of data refers to the ability to prove that a specific individual took a particular action and cannot deny it later. It ensures that the sender of a message or creator of data cannot later deny the authenticity of their actions. This is often achieved through the use of digital signatures or audit logs.

Processed data is called information.

1. How is sensitive data collected and stored?
2. What measures are in place to protect data from unauthorized access?
3. How often is data security training provided to employees?
4. What protocols are followed in case of a data breach?

The full form of CID is Criminal Investigation Department.

The field in the database can store OLE (Object Linking and Embedding) objects, which are either linked to or embedded within the table. This allows users to insert objects like images, videos, or documents directly into the database field. OLE objects enable the database to manage and display these objects within the table.

Data are raw facts or figures that have not been processed or analyzed. They become information when they are processed, interpreted, or organized in a specific context to give them meaning or significance.

Availability

A field in a database is often identified by a unique field or column name. This field name serves as the identifier for that particular data attribute within the database table. Assigning distinct and meaningful field names helps organize and reference the data effectively within the database system.

OLDP