1.Select * from instructor order by salary ____, name ___; To display the salary from greater to smaller and name in ascending order which of the following options should be used ?

2.The EXISTS keyword will be true if:

3.’_ _ _ ’ matches any string of ______ three characters. ’_ _ _ %’ matches any string of at ______ three characters.

4.Which is duplication of computer operations and routine backups to combat any unforeseen problems:

5.In SQL the spaces at the end of the string are removed by _______ function .