The total flow to migrate

There are 2 scenarios-

-Database is already being used by customer  and therefore I generate the changelog to get the current scehma.

-The schema is created with liquibase.


  1. In both the cases there is a presence of changelog file,and my understanding.Now do i modify this changelog file?or i create another changelog file to update/modify the schema?

  1. Also I dnt want the schema to be created everytime.Only when there is a change in the schema then I need to run this operation.Is that possible?How?

  1. When the schema is changed,Liquibase takes care of migration the data too??is that the understanding?Like for example state1 has Name,state2 splits the Name into firstName,lastName in such a case the data of the name is split into the two columns?

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