Entity-Relationship Diagrams
Entity-Relationship Diagrams (ERDs) are a visual representation of the relationships between entities in a database. ERDs are used to design and model databases, and they help to ensure that the database is organized and efficient. ERDs consist of entities, which are objects or concepts that have attributes, and relationships, which describe how the entities are related to each other. Entities are represented as rectangles, and relationships are represented as diamonds. Attributes are represented as ovals, and they are connected to the entities they belong to. ERDs can be used to identify the relationships between entities, to ensure that the database is normalized, and to identify potential problems with the database design.
Your Previous Searches
Random Picks
- Electromagnetic Radiation: Electromagnetic radiation refers to the energy that travels through space in the form of waves or particles. This radiation includes radio waves, microwaves, infrared radiation, visible light, ultraviolet radiation, X-rays, and gamma rays. ... Read More >>
- Data Anonymization: Data Anonymization is the process of removing or modifying personally identifiable information from data sets in order to protect the privacy of individuals. This is done by replacing identifiable information with artificial identifiers or ... Read More >>
- Kernel Function: In data science and machine learning, a kernel function is a mathematical function that transforms data into a higher-dimensional space, allowing for more complex analysis and classification. Kernel functions are commonly used in support ve ... Read More >>
Top News
New college grad? Here's what experts say you should know about AI....
We asked three experts what fresh college graduates can do to prepare as artificial intelligence changes how Americans work. Here's what they said....
News Source: CBS News on 2025-06-06
Senate Republicans revise ban on state AI regulations in bid to preserve controv...
Senate Republicans have made changes to their party’s sweeping tax bill in hopes of preserving a new policy that would prevent states from regulating artificial intelligence...
News Source: ABC News on 2025-06-06
Use of Community Notes on Elon Musk's X has plummeted in 2025...
Half as many crowdsourced Community Notes were created in May than were created in January....
News Source: NBC News on 2025-06-06
Film Festival showcases what artificial intelligence can do on the big screen...
Artificial Intelligence’s use in filmmaking is growing...
News Source: ABC News on 2025-06-06
Can AI be held accountable? AI ethicist on tech giants and the AI boom...
What is the future of AI and efforts to regulate its harms? Marc Lamont Hill speaks to AI ethicist Rumman Chowdhury....
News Source: Al Jazeera English on 2025-06-06