__________ operation retrieves a subset of rows. Fill in the ...

[Jipu 123]

__________ operation retrieves a subset of rows.
 
  Fill in the blanks with correct word

Question 2

In Oracle, the statement used to display employees' social security numbers and names that
  don't have any jobs assigned to them, would be which of the following?
 
  A) Select employee.ssn, employee.name From job Where employee.ssn Not In (Select Distinct
  job.ssn From job)
  B) Select employee.ssn, employee.name From job Where employee.ssn Not In (Select Distinct
  Employee.ssn From employee)
  C) Select employee.ssn, employee.name From employee Where employee.ssn In (Select
  Distinct job.ssn From job)
  D) Select employee.ssn, employee.name From employee Where employee.ssn Not In (Select
  Distinct job.ssn From job)

[millet]

Answer to Question 1

Selection

Answer to Question 2

B