If the item with a given search key does not exist in a table,the tableRetrieve operation returns ______.
A)the value -1
B)the value 0
C)the value false
D)a null reference

Question

Quizplus · Accepted Answer

When the item with a given search key does not exist in a table, the logical choice would be to return a null reference, indicating that there is no data to retrieve. This is a common practice in many programming languages and avoids returning any erroneous or misleading values. The other options of returning a value such as -1, 0, or false may cause confusion or issues in further processing of the data.

If the Item with a Given Search Key Does Not