Q15
Which one of the following method is used to retrieve the number of rows affected by an INSERT, UPDATE, or DELETE query?
A.
num_rows()
B.
affected_rows()
AnswerC.
changed_rows()
D.
new_rows()
Answer: Option B
Solution
Answer: Option B
Solution:
The method num_rows() is only useful for determining the number of rows retrieved by a SELECT query. But to retrieve the number of rows affected by INSERT, UPDATE, or DELETE query, use affected_rows().