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What are rows in dbms?
In DBMS the data is stored in the form of table . Each row in DBMS is known as tuple.
What is set operation in math?
The main set operations are: union, intersection and complement.
What does the word closed mean in math terms?
In Set Theory: a set is closed under an operation if performance of that operation on members of the set always produces a member of the same set.In Topology: a closed set is a set which contains all its limit points.
What is inverse in algebra?
Given a set and a binary operation defined on the set, the inverse of any element is that element which, when combined with the first, gives the identity element for the binary operation. If the set is integers and the binary operation is addition, then the identity is 0, and the inverse of an integer k is -k. If the set is rational numbers and the binary operation is multiplication, then the identity element is 1 and the inverse of any member of the set, x (other than 0) is 1/x.
How does DBMS reduce data redundancy?
DBMS stands for database management system. DBMS reduce data redundancy as it checks if the data is duplicate and if duplicate then store it as a single record.
Which two file are used during the operation of dbms?
data dictionary and transaction log
What are the basic concepts of DBMS?
DBMS stands for DataBase Management System. The main concepts are the structure, the manipulation, and a set of integrity rules.
what kind of operation set?
A set is not an operation.
What is meant by specialization dbms?
the process of designating subgroupingswithin an entity set
if you want to disign new DBMS to any organization first you must set of requiments and set of features that DBMS product must provide to fill requiments. discribe the process of evaluating and selecting the best DBMS product. ?
Know what you need and check each need is met by the product
Why duplicate tuples are not allowed in DBMS?
Since relation is a set, and tuples are element of a set, according to set theory, the elements of a set are not ordered.
What is set of steps completed by a dbms to accomplish a single user task?
transaction
What are the difference between static and dynamic hashing in DBMS?
Search operation in static hashing is time consuming, but in dynamic hashing it is not.
What is locks in DBMS?
a lock is variable associated with a data item that describes the status of the item with respect to possible operation that can be applied to it.
What are highlights of DBMS?
NA_ what are highlights of advanced DBMS what are highlights of advanced DBMS what are highlights of advanced DBMS
Define DBMS What is its primary goal?
collection of interrelated data & set of program & access those programITS GOALprimary goal of dbms is store & retrieve the database information in convenient & efficient way
Is java DBMS?
no, Java is not dbms.. Java is a programming language Dbms is database
