MySQL EXPLAIN UPDATE

Question

I am trying to answer the following question as part of my college revision:

Create an index on at least one attribute of a table in the ‘employees’ dat

Answer 1

The reference doc of Mysql 5.6:http://dev.mysql.com/doc/refman/5.6/en/explain.html

As of MySQL 5.6.3, permitted explainable statements for EXPLAIN are SELECT, DELETE, INSERT, REPLACE, and UPDATE. Before MySQL 5.6.3, SELECT is the only explainable statement.

Answer 2

EXPLAIN UPDATE exists in MySQL 5.6 but not MySQL 5.5 by comparing the document of MySQL. Did you try that on MySQL 5.6 server?