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For back-out purposes, it is highly recommended that a database backup of the Oracle database be taken using standard tools like RMAN for Oracle. Another option would be to export the FD, FD_ADMIN, and FF schemas using data pump. The schemas can be exported using the following data pump command :for Oracle as shown below. Follow standard procedures for PostgreSQL and MySQL for database backup.

expdp system directory=DATA_PUMP_DIR dumpfile=fd_bkup.dmp schemas=FD,FF,FD_ADMIN
If this database is exclusively used for just FlexDeploy application, you can rely on Database backup and recovery processes (RMAN) 
instead of export data procedure.

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