Consider the index information for the dept_emp table in the employee's schema:

Which two conclusions can be made based on the output of the query? (Choose two.)

What is the order of tables shown in an EXPLAIN output?

You have a MySQL instance with the following variables in the /etc/my.cnf file:

You issue these statements:
USE prices;
UPDATE sales.january SET amount=amount+1000;
An hour after excluding the statements, you realize that you made a mistake and you want to go to the binary log and look at the statements again.
Which statement is true? (Choose two.)

A crucial database, 'db_prod', just disappeared from your production MySQL instance.
In reviewing the available MySQL logs (General, Audit, or Slow) and your own application-level logs, you identified this command from a customer facing application:
SELECT id FROM users WHERE login='payback!';DROP DATABASE db_prod;'
Which three methods could have been used to prevent this SQL injection attack from happening?

Consider the index information for the dept_emptable in the employee's schema:

Which two conclusions can be made based on the output of the query? (Choose two.)