What is joining a table to itself called? 

The default storage engine used is ____________ 

 A view can refer to multiple tables via __________
 

  Which of the following options tells mysql to ask for entering the password?
 

  Is the following statement is true/false?
“Two NULL values are equal to each other”
 

In which file do MySQL store database character sets and collation attributes?

 Which declaration represents that “character data will consume the same number of bytes as declared and is right padded”?
 

 The number obtained by interchanging the two digits of a two-digit number is less than the original number by 45. If the sum of the two digits of the number so obtained is 13, then what is the original number? 

What will be the output of the query given below?

 SELECT emp_id, fname, lname FROM employee WHERE title=’HEAD TELLER’ AND start_date>2008-11-23; 

Which of these is true about a correlated subquery?