Which of the following clauses is used to limit the rows that will be updated by specifying a condition the row must meet?
Which of the following operators evaluates to true when both arguments are the same, even if they are both NULL?
Which of the following expressions is used in conjunction with various values and is replaced with a derived result value?
Which of the following joins returns all rows from the left and right tables in a join expression even if the data values in the joined columns do not match?