I have migrated with some tables in my application. After some days i
need to add few more tables to database. The initial tables in database
have some data. when i try to migrate the database for second time with
rake db:migrate it is saying the alredy table exist <table name> and
rake is aborted. i dont want to loose the old data and i want to add new
tables to alredy exiested database
how to do this. Please help me.