In E-R Diagram total participation is represented by
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DFD stands for
A ______ module is typically designed so that it will run on a user workstation or personal computer.
An advantage of the database management approach is
Shadow paging has
Relational Algebra is
Employees in a company are each assigned their own office, i.e. for each employee there exists a unique…
____ table store information about database or about the system.
_______ product was acquired by Informix, integrated into its RDBMS and introduced as the Informix Universal…
Data independence means
Which two files are used during operation of the DBMS?
The collection of information stored in a database at a particular moment is called as ......
Change Staff table by removing default of Assistant for position column
A _____ is a logical unit of database processing that includes one or more data access operations that…
The ______ key of a relation is the attribute (column) or collection of attributes, which uniquely identify…
Drop Table cannot be used to drop a table referenced by a ______ constraint.
Protection of data from unauthorized Disclosure results in loss of _______
When an E-R diagram is mapped to tables, the representation is redundant for
The data in the database at a particular moment of time is called the _______
A relational database developer refers to a record as
What are the desirable properties of a decomposition
The common column is eliminated in
The ____ operator joins two or more conditions and displays rows only if that rows data satisfies all…
The part of a database management system which ensures that the data remains in a consistent state is
A weak entity has an ______ dependency on its owner entity, which can be used for both ON UPDATE and…
In an E-R, Y is the dominant entity and X is a subordinate entity. Then which of the following is incorrect…
If two relations R and S are joined, then the non matching tuples of both R and S are ignored in
In b-tree the number of keys in each node is than the number of its children.
The graphical representation of a query is .
According to the levels of abstraction, the schema at the intermediate level is called
Which of the following is not comparison operator?
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