How many common constraints are there in MySQL?

 ‘1234’ is a ____________ 

 Which command is used for taking “server side help” in Mysql command line tool? 

Which of the following SQL commands is a Data Manipulation Language (DML)?

The file created by the server to store the database attributes is __________ 

 The MySQL server used in its client/server architecture is _______________
 

  What sets the association between one or more MyISAM tables and the named key cache? 

What can be used to check for views that have been invalidated by DROP or ALTER operations? 

What is the SQL keyword that connects rows with foreign keys to the corresponding data in the table that the foreign key points to?

 What is the need of “column Aliases” in “SELECT” clause?