Database Programming

A query by example is where you fill in data that in effect acts like a sample of what you want the query to retrieve. So if you have a set of data of employees and want to show ones that work in a particular department, you would type the name of the department into the query to correspond to the field that shows the department. So in the query, you would have chosen your fields, and in the criteria under the department field you might type something like "Sales", indicating that you want records that have "Sales" in the department field. What you type in acts as an example of the data you want to get. You could use lots of criteria in different ways and build more complex queries, but still using a query by example approach.

In ICT terms, a field refers to a specific part of a database record used to store a particular piece of information, such as a name, address, or phone number. Fields are organized in rows and columns within a database table to store, sort, and retrieve data efficiently.

Data leakage can result in the loss of sensitive information, leading to potential breaches of confidentiality and privacy. It can also damage an organization's reputation, result in financial losses, and lead to regulatory compliance issues. Additionally, data leakage can contribute to intellectual property theft and competitive disadvantages.

Some popular database management system (DBMS) tools include MySQL, Microsoft SQL Server, Oracle Database, and PostgreSQL. These tools are widely used for storing, managing, and retrieving data in various applications and systems.

because DBMS consist of interrelated data field which can be identified through a unique keys in identifying a record to know the origination of data source that serve as an object in the table column in database.

The normal term would be a primary key, not a record key.

A distributed data warehouse is a type of data warehouse architecture where data is distributed across multiple servers or nodes in a network. This allows for improved scalability, performance, and fault tolerance compared to a centralized data warehouse. Distributed data warehouses can handle large volumes of data more efficiently by spreading the workload across multiple nodes.

Labeling PII and/or PHI as "Controlled Unclassified Information" AND Transporting PII/PHI physically between approved locations with prior authorizations AND Storing PII/PHI after formal approval for transfer to a storage site are all required for special handling of privacy and sensitive data.

An indexed sequential file is a type of file organization where data records are stored sequentially in the order of key values. An index is maintained to help locate records quickly. This combination of sequential storage and indexing allows for efficient access to data in both sequential and random access patterns.

Frame data field may contain information such as the number of frames a move takes to execute, the number of frames a move leaves the character vulnerable, the hitbox properties, and any special properties or effects associated with the move.

A primary key is a unique identifier for a record in a database table and is used to ensure each record is uniquely identifiable. A secondary key is a key used for sorting and indexing purposes, but can have duplicate values within a table.

It's either True or False. One of the two.

Two common uses of databases are storing and organizing large amounts of data in a structured format, and providing efficient retrieval of specific information through queries and search functions. Databases are also used for data analysis, reporting, and supporting applications that require data management functionalities.

When older systems are discarded without properly deleting the data, sensitive information can be exposed to unauthorized access. This can lead to data breaches, identity theft, financial loss, and even legal consequences due to non-compliance with data protection regulations. It is important to securely wipe all data from devices before disposing of them to prevent these risks.

In database management system (DBMS), intension refers to the structure or schema of the database. It defines the overall design and organization of the database, including tables, columns, data types, constraints, and relationships. It serves as a blueprint for creating and managing the database.

"Metadata" defines the structure of the data stored.

Data dependency in computer science can lead to performance issues as it may create bottlenecks and limit parallel processing capabilities. It can also increase the risk of errors and hinder the efficiency of multi-threaded or distributed systems. Additionally, data dependency can make it difficult to optimize code for speed and scalability.

Demographic data is information about the patient (Gender, Date of Birth, etc). This is information which is static and will not change. Visit Level Data would be data collected at individual visits throughout the study, such as Vitals (Pulse, Blood Pressure), Physical Exam, Lab Results, etc. These data may very well vary from visit to visit.

redundant.

A composite key is a combination of two or more columns in a database table that uniquely identifies each record. It is used when a single column does not provide a unique identifier, so multiple columns are combined to create a unique identifier for each row.

They are interested in these data because they provide valuable insights and information that can help make informed decisions, identify trends, detect patterns, and derive meaningful conclusions to improve processes, products, services, or strategies. Analyzing data can lead to better understanding of customer behaviors, market conditions, and business performance, ultimately leading to better outcomes and competitive advantage.

A data field is a component of a database record or table that stores a specific piece of information, such as a name, date, or numerical value. It represents a single characteristic of the data being stored and is often used to organize and categorize information within a database.

Enterprise wide knowledge management systems aim to capture, store, and share knowledge and information across an organization. By providing a centralized platform for employees to access and contribute knowledge, these systems help improve decision-making, innovation, and collaboration. Ultimately, the goal is to enhance organizational learning and performance.

A class attribute is a variable that is shared by all instances of the class. It is used to store data that is common to all instances of the class, rather than specific to each instance. This can help avoid redundancy and ensure consistency across all instances.

A query is used to retrieve specific information or data from a database based on specific criteria. It allows users to search, filter, and retrieve data that meets their requirements. Queries can also be used to update or modify existing data in the database.