• NOT ALLOWED - On a primary database, this status indicates that there are no valid and enabled standby databases.

    • On a standby database, this status indicates that a switchover request has not been received from the primary database. 

  • SESSIONS ACTIVE - The database has active sessions. On a physical standby database, the WITH SESSION SHUTDOWN SQL

    • clause must be specified to perform a role transition while in this state. On a logical standby database, a role transition can be

    performed while in this state, but the role transition will not complete until all current transactions have committed.  

  • SWITCHOVER PENDING - On a physical standby database, this status indicates that a switchover request has been

    • received from the primary database and is being processed. A physical standby database cannot switch to the primary role while

    in this transient state. 

  • SWITCHOVER LATENT - On a physical standby database, this status indicates that a switchover request was pending,

    • but the original primary database has been switched back to the primary role. 

  • TO PRIMARY - The database is ready to switch to the primary role. 
  • TO STANDBY - The database is ready to switch to either the physical or logical standby role. 
  • TO LOGICAL STANDBY - The database has received a data dictionary from a logical standby database and is ready to

    • switch to the logical standby role. 

  • RECOVERY NEEDED - On a physical standby database, this status indicates that additional redo must be applied before

    • the database can switch to the primary role. 

  • PREPARING SWITCHOVER - On a primary database, this status indicates that a data dictionary is being received from a

    • logical standby database in preparation for switching to the logical standby role. On a logical standby database, this status indicates

    that the data dictionary has been sent to the primary database and other standby databases. 

  • PREPARING DICTIONARY - On a logical standby database, this status indicates that the data dictionary is being sent

    • to the primary database and other standby databases in preparation for switching to the primary role. 

  • FAILED DESTINATION - On a primary database, this status indicates that one or more standby destinations are in an

    • error state. 

  • RESOLVABLE GAP - On a primary database, this status indicates that one or more standby databases have a redo gap

    • that can be automatically resolved by fetching the missing redo from the primary database or from another standby database. 

  • UNRESOLVABLE GAP - On a primary database, this status indicates that one or more standby databases have a redo gap

    • that cannot be automatically resolved by fetching the missing redo from the primary database or from another

    standby database.