Which of the following is not a KeyListener method?

Give an INSERT statement that might cause a phantom.

Consider a schema with two tables, Table1 and Table2, each having three attributes, attr1, attr2, and attr3, and consider the statement

SELECT T1.attr1, T2.attr1
FROM Table1 T1, Table2 T2
WHERE T1.attr2 = T2.attr2 AND T1.attr3 = 5
AND T2.attr3 = 7

Which of the following sorting algorithms follows a divide and conquer approach?

a. Insertion sort b. Bubble sort c. Quicksort d. Selection sort