Which of the join operations do not preserve non matched tuples?

Related MCQs

• Which of the join operations do not preserve non matched tuples?
• Which one of the following provides the ability to query information from the database and to insert tuples into, delete tuples from, and modify tuples in the database?
• In a                            operations do not wait for requests to produce tuples, but instead generate the tuples eagerly.
• Suppose now that R(A,B:) and S(A,B:) are two relations with r and s tuples, respectively (again, not necessarily distinct). If m is the number of (not necessarily distinct) tuples in the result of the SQL query: R intersect S; Then which of the following is the most restrictive, correct condition on the value of m?
• A                  on an attribute of a relation is a data structure that allows the database system to find those tuples in the relation that have a specified value for that attribute efficiently, without scanning through all the tuples of the relation.
• Which are the join types in join condition:
• Which join refers to join records from the write table that have no matching key in the left table are include in the result set:
• How many join types in join condition:
• Which of the following is used at the end of the view to reject the tuples which do not satisfy the condition in where clause?
• The                        operation, denoted by −, allows us to find tuples that are in one relation but are not in another.