Database Systems Practice Test 124
Aggregate Functions Multiple Choice Questions (MCQs) PDF Download - 124
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Aggregate Functions MCQ Quiz with Answers PDF Download: Test 124
The result does not change but it is legal to use Distinct with
- Min
- Max
- Both A and B
- Count
In the connection pooling, a pool refers to
- A set of open ODBC/JDBC connections
- A set of available ODBC/JDBC connections
- A set of closed ODBC/JDBC connections
- A set of similar ODBC/JDBC connections
Row sets can be scanned
- Backward
- Forward
- Modifying
- All of the Above
The command to drop some relation from the database is
- Drop about r
- Drop from r
- Delete from r
- Delete about r
The passing of a specific authorization from one user to another can be represented by an
- Authorization type
- Authorization model
- Authorization view
- Authorization graph
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- Term that says values appearing in specified attributes of any tuple in referencing relation also appear in specified attributes of at least one tuple in referenced relation, is called
- Major database vendors presently supports
- Query languages are terse and formal, but they illustrate fundamental techniques for
- Operation that operates on two relations and produces a relation as result, is known to be
- We can test for non-existence of tuples in a subquery by using construct