title: Liferay 7.0 Data Migration from one database to another
body: <p>I'm using Liferay 7.0 with the Default Database(HSQL DB) and have many sites,pages and users in it. I'm trying to configure the portal to access mySql DB and it worked. 
  But, I want all the Content in the previous Database in the newly configured mySql Database and Database Migration in Server Administration doesn't work. How do I overcome this?  </p>