Home
Earn $100 Online Daily. Work From Home. Click Here

What is the correct answer?

4

In an E-R, Y is the dominant entity and X is a subordinate entity. Then which of the following is incorrect :

A. Operationally, if Y is deleted, so is X

B. existence is dependent on Y.

C. Operationally, if X is deleted, so is Y.

D. Operationally, if X is deleted, & remains the same.

Related Questions

The _______ is a set of programs to use and / or modify this data. Which of the following ensures the atomicity of the transaction? Which normal form is considered adequate for normal relational database… An advantage of views is Which of the following statement on the view concept in SQL is invalid? In a multi-user database, if two users wish to update the same record… The middleware databases in which the business rules act are applicable… The drawback of shadow paging technique are Which of the following is not a property of transactions? ………………… approach reduces time… By ______ an area on disk in certain ways, one can make it represent a… Which of the following relational algebraic operations is not from set… Whenever two independent one-to-many relationships are mixed in the same… _____ First proposed the process of normalization. The size of a data item is called its _______, which can be a field of… Which one is correct statement?Logical data independence provides following… ______is a special type of integrity constraint that relates two relations… In 2NF Immediate database modification technique uses The data in the database at a particular moment of time is called the… Key to represent relationship between tables is called The relational model is based on the concept that data is organized and… The keyword to eliminate duplicate rows from the query result in SQL is Which of the following is not a recovery technique? As per equivalence rules for query transformation, selection operation… For using a specific database …………… command… The metadata is created by the Which of the following is not a logical database structure? The clause in SQL that specifies that the query result should be sorted… A logical schema