Which of the following is not a recovery technique?
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The ______ key of a relation is the attribute (column) or collection of attributes, which uniquely identify…
SQL server stores index information in the _____system table
A relational database developer refers to a record as
Use of UNIQUE while defining an attribute of a table in SQL means that the attribute values are
In an E-R diagram double lines indicate
A data type or format is specified for each _________
The one guideline to be followed while designing the database is
Which of the following is true for network structure?
According to the levels of abstraction, the schema at the intermediate level is called
In a relational schema, each tuple is divided into fields called
The transactions like adding an employee, enrolling a student in a course are examples of _______
A table can have only one
Consider the join of relation R with a relation S. If R has m tuples and S has n tuples, then the maximum…
DBMS helps achieve
______is a preferred method for enforcing data integrity
If two relations R and S are joined, then the non matching tuples of both R and S are ignored in
Grant and revoke are _____ statements.
In SQL the word natural can be used with
The common column is eliminated in
The drawback of shadow paging technique are
If the closure of an attribute set is the entire relation then the attribute set is a
The part of a database management system which ensures that the data remains in a consistent state is
The _______ is a set of programs to use and / or modify this data.
The clause in SQL that specifies that the query result should be sorted in ascending or descending order…
What is data integrity?
_____is a full form of SQL.
Wait-for graph is used for
_____ First proposed the process of normalization.
_______ product was acquired by Informix, integrated into its RDBMS and introduced as the Informix Universal…
Which normal form is considered adequate for normal relational database design?
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