Answer:
The answer is "Option A"
Explanation:
The constructor is a special member function whose task is to initialize an object from its class, and it doesn't return any value like int, float, double, etc. Its name and class name will always be the same, and when we create the class object so, the constructor is automatically called, and it may be overloaded, that's why we can say that except the "choice A", all were correct.
The answer is the 2nd one. Hope this helps! ;)
Answer:
Data modeling occurs at three levels—physical, logical, and conceptual.
- A physical model is a schema or framework for how data is physically stored in a database.
- A conceptual model identifies the high-level, user view of data.
- A logical data model sits between the physical and conceptual levels and allows for the logical representation of data to be separate from its physical storage.
Answer:
Trigger
Explanation:
The process through which an event or an action causes the task to start is called triggering. It is being extensively used in different subjects related to computer programming. And like we create a trigger in DBMS, to trigger some event like showing the output of some queries. And we do have the trigger used by various software as well, and which are built in various programming languages, and various platforms.
