There are some data present in the Oracle database schema corresponding to few type of artifacts in WSO2 Greg version 4.6. Now I have changed WSO2 Greg version 5.3 connected to that database (New schema), where artifacts attributes(field) have been changed (Change the content in RXT file). How would I migrate that old data (for version 4.6) from one schema to another schema?
Note: The data gets stored into database in BLOB format.
You have to migrate data from one version to the next immediate version and continue that up to the latest version.
You can follow this migration doc of 5.3.0.