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Describe the role of social media sites in digital communication technology?

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...
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how do you understand the right access of structure in relational database management system model

What do you mean the right accessing of structure in relational database management system [RDMS]?

About the data structure of the relational database

The storage structure of the database is type of matrix form. It makes a combination in the form of x and y axis like coordination intersection structure such as column and row insects at the point, the point position is stores a single data enter in the cell. The intersection of the column and rows are also known as cells.

What do you mean by the cell in the relation?

The cell is a single data storage box. You can enter the single data only. If you enter the s double type data it makes meaningless information. It makes illogical information in the relation. So it is most important part the cell stores only a single data.

The cell have an address to find easily such as the column have name is “a” and the row have a number is “1” then the cell makes a combination of “a1” this combination is called address in the relation model.

About the column and rows with their names

The columns have their own names such as first column name is “A”. The column A is denoted as a particular column. It known as reference name of the columns line or you can also say address name line of a column. Similarly, according to the rows have a particular serial number denoted as unique identity or a primary key attribute in the relational model.

You can change the row of serial number as a primary key and in the column you can address name line as the records properties as attribute.

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