how to drop partition without dropping data in MySQL?

Question

I have a table like:

create table registrations( 
id int not null auto_increment primary key,
name varchar(50),
mobile_number varchar(13)) 
engine=innodb 
partit         


        

Answer 1

If you want to rearrange the data while keeping the partitions,
you can take a look at REORGANIZE PARTITION and COALESCE PARTITION clauses of ALTER TABLE
command.
http://dev.mysql.com/doc/refman/5.1/en/alter-table.html