_________ operator is considered as a side-effecting operator
_________ operator is considered as a side-effecting operator
The ________ function returns the total sum of a numeric column
The ________ function returns the total sum of a numeric column
The ________ function returns the smallest value of the selected column
The ________ function returns the smallest value of the selected column
The basic heuristic rule says that before applying _________operation or any other binary operation, SELECT and PROJECT operations must be applied.
The basic heuristic rule says that before applying _________operation or any other binary operation, SELECT and PROJECT operations must be applied.
Among the following Set operations the _________operation is most costly
Among the following Set operations the _________operation is most costly
Set operations like UNION, INTERSECTION and SET DIFFERENCE can be applicable only to ________ compatible relations
Set operations like UNION, INTERSECTION and SET DIFFERENCE can be applicable only to ________ compatible relations
Query ________ represents relational calculus expression.
Query ________ represents relational calculus expression.
_________ can be defined as rules governed from common sense rather than from an exhaustive methodology
_________ can be defined as rules governed from common sense rather than from an exhaustive methodology
________ operation is used to join two database tables/relations
________ operation is used to join two database tables/relations
heuristics means a good idea to make _______ decision
heuristics means a good idea to make _______ decision
The_________ function returns the largest value of the selected column
The_________ function returns the largest value of the selected column
The __________statement is used in conjunction with the aggregate functions to group the result-set by one or more columns..
The __________statement is used in conjunction with the aggregate functions to group the result-set by one or more columns..
A________ database is a database that can be connected to by a mobile computing device over a mobile network.. A.cell B.mobile c.network D.centralized
A________ database is a database that can be connected to by a mobile computing device over a mobile network.. A.cell B.mobile c.network D.centralized
A query _______ is employed to represent relational algebra expressions
A query _______ is employed to represent relational algebra expressions
_________ refers to the procedure for selecting the best execution strategy amongst the various options available
_________ refers to the procedure for selecting the best execution strategy amongst the various options available