The middleware databases in which the business rules act are applicable to _______ tier architectures
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An outstanding functionality of SQL is its support for automatic_____ to the target data.
An advantage of views is
______ keyword is used to find the number of values in a column.
In an E-R diagram double lines indicate
Manager salary details are hidden from the employee .This is
Which of the following is not a property of transactions?
The set of all values that can be taken by the attribute is called as _______ of the attribute.
A _____ is a logical unit of database processing that includes one or more data access operations that…
If an entity can belong to only one lower level entity then the constraint is
DBMS is a collection of _____ that enables user to create and maintain a database.
The _____ category includes storage media that can be operated on directly by the computers central…
The ______ key of a relation is the attribute (column) or collection of attributes, which uniquely identify…
The normal form that is not necessarily dependency preserving is
Tree structures are used to store data in
Maximum height of a B+ tree of order m with n key values is
_____ database is used to provide statistical information or summaries of values based on various criteria.
In SQL the statement select * from R, S is equivalent to
______is a preferred method for enforcing data integrity
Which of the following is not a consequence of concurrent operations?
Which of the following addressing modes permits relocation without any change over in the code?
………………… approach reduces time and effort required for design…
Change Staff table by removing default of Assistant for position column
The fact that information in the data warehouse changes far less often and may be regarded as non-real-time…
What will be the number of columns and rows respectively obtained for the operation, A- B, if A B are…
Assume transaction A holds a shared lock R. If transaction B also requests for a shared lock on R.
Which of the following is a reason to model data?
The graphical representation of a query is .
What is a disjoint less constraint?
Given the following relation S(SNO,SNAME,CITY) write a query to update the value of CITY to KANPUR for…
The statement that is executed automatically by the system as a side effect of the modification of the…
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