Question 11

Examine the appointments table definition which contains one million rows:

Now, examine this statement which executes successfully:

Which statement will improve query performance?
  • Question 12

    Which two are true about indexes?
  • Question 13

    Examine these statement which execute successfully:

    Now, examine this desired output:

    Which two queries will produce the out?
    A)

    B)


    D)

    E)
  • Question 14

    Your program which uses a MySQL connector receives this error:
    Client does not support authentication protocol request by server
    The account running the program uses caching_sha2_password.
    Which two resolve this conflict?
  • Question 15

    You must write a statement that combines the first_name and last_name columns from the employees table as "last_name, first_name." Which two statements will do this?