In an ER model,_____ is described in the database by storing its data.
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E-R Modeling is achieved by using ____ diagrams
The size of a data item is called its _______, which can be a field of some record or may be a larger…
Which of the following is not a characteristic of a relational database model?
_____ database is used to provide statistical information or summaries of values based on various criteria.
The cost of reading and writing temporary files while evaluating a query can be reduced by
Immediate database modification technique uses
DBMS helps achieve
The fact that all employees of a particular organization should not have salaries more than $10000 is…
Data independence means
In b-tree the number of keys in each node is than the number of its children.
In an E-R, Y is the dominant entity and X is a subordinate entity. Then which of the following is incorrect…
Change Staff table by removing default of Assistant for position column
The transactions like adding an employee, enrolling a student in a course are examples of _______
The full form of GUI is _________
The relational model is based on the concept that data is organized and stored in two-dimensional tables…
The common column is eliminated in
A logical schema
approach reduces time and effort required for design and lesser risk in database management.
A ____ key specifies a uniqueness constraint that no two distinct tuples in any state r of relation…
For correct behaviour during recovery, undo and redo operation must be
Tree structures are used to store data in
Assume transaction A holds a shared lock R. If transaction B also requests for a shared lock on R.
DROP is a statement in SQL.
What is a disjoint less constraint?
Dependency preservation is not guaranteed in
The collection of information stored in a database at a particular moment is called as ......
The language that requires a user to specify the data to be retrieved without specifying exactly how…
The clause in SQL that specifies that the query result should be sorted in ascending or descending order…
Which of the following relational algebraic operations is not from set theory?
In multiple granularity of locks SIX lock is compatible with
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