Processed data is called _____
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In an ER model,_____ is described in the database by storing its data.
The language that requires a user to specify the data to be retrieved without specifying exactly how…
A list consists of last names, first names, addresses and pin codes. If all people in the list have…
A data type or format is specified for each _________
A table can have only one
Immediate database modification technique uses
For correct behaviour during recovery, undo and redo operation must be
Drop Table cannot be used to drop a table referenced by a ______ constraint.
In an ER diagram the ___shape specifies the Attibute and a ____ shape specifies the primary key attribute.
Which of the following is not a logical database structure?
What is data integrity?
_____clause is an additional filter that is applied to the result.
DFD stands for
The cost of reading and writing temporary files while evaluating a query can be reduced by
Which of the following relational algebraic operations is not from set theory?
What is a disjoint less constraint?
Maximum height of a B+ tree of order m with n key values is
If the closure of an attribute set is the entire relation then the attribute set is a
A top-to-bottom relationship among the items in a database is established by a
………………… approach reduces time and effort required for design…
If a transaction T has obtained an exclusive lock on item Q, then T can
Which one is true statement :
Which of the following concurrency control schemes is not based on the serializability property?
In a relational schema, each tuple is divided into fields called
What are the desirable properties of a decomposition
Between DRAM and magnetic disk storage another form of memory, called ______ memory is becoming common…
Which of the following is true for network structure?
Relational Algebra is
The middleware databases in which the business rules act are applicable to _______ tier architectures
The drawback of shadow paging technique are
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