Entity Relationship Diagram (ER Diagram or ERD) is a pictorial or visual representation of classifying groups or entities of common interest and defining the relationship between these groups. Hence, a structure is created with various symbols of different shapes and sizes so that it can be used ...
Cardinality, in the context of ERD, is the number of instances of one entity that can, or must, be associated with each instance of another entity. In general, there may be one-to-one, one-to-many, or many-to-many relationships. For example, let us consider two real-world entities...
Explain the following crow's foot E-R diagram. Include entities, keys, attributes, cardinality. What is the special type of entity represented by COMMISSION_RATE? What is the multiattribute pattern, and how does it appear in forms? How can this pattern be modeled in an ERD?
What is commensalism' Explain with the help of an example. View Solution Doubtnut is No.1 Study App and Learning App with Instant Video Solutions for NCERT Class 6, Class 7, Class 8, Class 9, Class 10, Class 11 and Class 12, IIT JEE prep, NEET preparation and CBSE, UP Board, Bihar...
Can someone explain just exactly why xp_cmdshell is such a massive risk?! Can SQL Profiler give you the Missing Index information? Can Symmetric keys be used in a view? Can table-valued parameter be null? Can the "print" command be told not to send a "newline"? Can we alias name fo...
such as another department or business, which can be drawn without internal process representation as a black box for external participants. A lane is a box to partition within a pool to represent internal divisions. For example, it can represent roles in an organization, such as manager and ...
What is the multiattribute pattern, and how does it appear in forms? How can this pattern be modeled in an ERD? Script languages like python do not support inheritance. Is the statement true or false? Explain the enum data type with an example program. (a) Explain the difference between ...
created to handle the connection to AD. We didn't know it couldn't be Enterprise Admin or Domain Admin, so we need to grant the necessary permission to this user. We likely should have just allowed the AAD Connect installation wizard to create the MSOL_ user account and ...
? It's one of the most useful way which allows explain the information, statistical data in a visual form using the pictures. ConceptDraw DIAGRAM software extended with Picture Graphs solution from the Graphs and Charts area offers you the easiest way of Picture Graphs drawing.Example 1. What ...
In our meeting, we used a DFD to explain the data processing in our new app. 10 ERD A visual representation of the data structure within a system or database. The ERD provided a clear overview of the entity connections in the software. 10 DFD A schematic describing the pathways and proce...