Decomposition of one relation say R into two relations is classified as
If there is more than one key for relation schema in DBMS then each key in relation schema is classified as
Database management architecture in which there is middle level between database server and client server is classified as
Self-directed teams can be thought as a fundamental work unit in the
If in JOIN operation, conditions of JOIN operation are not satisfied then results of operation is
If attribute of relation schema R is not a member of some candidate key then this type of attribute is classified as
Process of converting requests into results between three-schema architecture internal, external and conceptual levels is called
Tuples that are represented in one of two relations and are lost if JOIN operation is performed are called
A snapshot of data in database at a given instant in time, is known as
In a given relationship R, if an attribute A uniquely defines all other attributes, then the attribute A is a key attribute which is also known as the _________ key
SQL view is said to be updatable (that is, inserts, updates or deletes can be applied on the view) if which of the following conditions are satisfied by the query defining the view
For select operation the ________ appear in the subscript and the ___________ argument appears in the paranthesis after the sigma
The operation which is not considered a basic operation of relational algebra is
Which is a bottom-up approach to database design that design by examining the relationship between attributes