Describe the role of social media sites in digital communication technology? Social media sites provides many types of ways to share and allow to send different types of data such as:- text data through file of text document or direct message text to the chat box directly to the user by typing, the audio clip can be recorded to send the file or direct voice calling system allows to connect with the user when the user is online. Similarly, video data can be shared to the user in the form of a file and directly connected in the form of video call or video chatting. The image file can be used to share the information object which is still object information including text data depending on the creators. The social media sites provide the services of connecting users through the data communication system using the different types of option such as:- chatting using text messages, audio clipping sends methods, recorded current video through the camera or direct video call or chat option, voi...
How can the relational database model be able to show their information and data from the database?
Describing the information from the database
- The relational database made by some components are rows, columns, rows number, columns name, key attributes etc.
- This database is made by the combination of rows and columns called cells in the model where the column direction is a vertical type data and rows direction is a horizontal type data.
- To describe the information we can use queries command to take information of a particular record from the rows and the columns show their attributes of the record.
- The records are searched by their unique identity of a particular record from the relational model which is known as a key attribute of the record.
Describing the data from the database
- The data is raw in a database but in the combination of record and attribute, the data is meaningful data which is called information.
- The data is entered by the user in the database.
- The data is entered by the user using queries or it can be updated, deleted and processed in the database for an application.
- The data from a particular cell is also a description data about the records of an object and it can be an information of the object data. The description gives you information about the object where the column name is “description” and the data of the description cells are known as information of the object.
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