PROJECT Operation MCQ (Multiple Choice Questions) PDF Download

The degree of the PROJECT operation is equal to

1. number of entities
2. number of attributes
3. number of columns
4. number of rows

In unary relational operations, the PROJECT operation is partition of relation usually classified as

1. horizontal partition
2. vertical partition
3. insert partition
4. delete partition

The operation which only selects some of the columns from table and neglect the remaining columns is classified as

1. OR operation
2. AND operation
3. TABLE operation
4. PROJECT operation

If the duplicate relations will not be eliminated, the resultant tuples will be multiset of tuples rather than

1. set of tuples
2. set of entities
3. set of attributes
4. set of string characters

In unary relational operations, the symbol π is used to represent the operation called

1. OR operation
2. AND operation
3. TABLE operation
4. PROJECT operation