- 
					 The number of tables for which DELAYED works is _________________.
MyISAM, MEMORY, ARCHIVE, BLACKHOLE 
- 
                        
- 4
 - 3
 - 2
 - 1
 - None of these
 
 
Correct Option: A
The ‘DELAYED’ statement modifier that influences the default scheduling policies of MySQL works for the following tables: MyISAM, MEMORY, ARCHIVE and as of MySQL 5.1.19, also for BLACKHOLE tables.