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

What is the correct answer?


In an ER diagram the ___shape specifies the Attibute and a ____ shape specifies the primary key attribute.

A. Oval; An oval with an underlined attribute

B. Circle; A circle with bolded attribute inside it

C. Diamond; A bolded attribute

D. Square; An attribute within the square

Related Questions

The set of all values that can be taken by the attribute is called as… Which of the following is not a property of transactions? In a relational schema, each tuple is divided into fields called What is a disjoint less constraint? Union operator is a : Which of the following is not comparison operator? Precedence graphs help to find a The common column is eliminated in The _____ category includes storage media that can be operated on directly… The fact that all employees of a particular organization should not have… _____clause is an additional filter that is applied to the result. Checkpoints are a part of Which of the following constitutes a basic set of operations for manipulating… If both the functional dependencies : XY and YX hold for two attributes… The full form of GUI is _________ In b-tree the number of keys in each node is than the number of its children. The one guideline to be followed while designing the database is E-R Modeling is achieved by using ____ diagrams The fact that information in the data warehouse changes far less often… The normal form that is not necessarily dependency preserving is When an E-R diagram is mapped to tables, the representation is redundant… Cascading rollback is avoided in all protocol except Maximum height of a B+ tree of order m with n key values is In SQL the word natural can be used with Tree structures are used to store data in Which two files are used during operation of the DBMS? If two relations R and S are joined, then the non matching tuples of both… The transactions like adding an employee, enrolling a student in a course… ______is a special type of integrity constraint that relates two relations… The metadata is created by the