What SQL clause is used to restrict the rows returned by a query?

Which of the following is used to delete an entire MYSQL database?

MySQL supports the complete SQL99 standard

Primary Key does allow the Null Values. where as in

Unique key doesn't accept the Null values.

How much character are allowed to create database name?

Which of the following commands should be used to create a database named “student”?

Which one will delete the table data as well as table structure?

The USE command?

Given an employees table as follows:  

emp_id emp_name

1 Brush

2 Jerrin 

what value will be return by below query ?

Select count(*) from employees

The main MySQL program that does all the data handling is called?