If you are upgrading to the current Oracle Database release, Oracle Spatial and Graph is automatically upgraded as part of the operation. For information about the upgrade procedure, see Oracle Database Upgrade Guide.
If you need to downgrade Spatial and Graph to the previous Oracle Database release, follow the instructions for downgrading a database back to the previous Oracle Database release in Oracle Database Upgrade Guide.
If you need to migrate spatial data from one database to another, see Migrating Spatial Data from One Database to Another.
If you use Oracle Spatial and Graph GeoRaster, see Ensuring That GeoRaster Works Properly After an Installation or Upgrade.
If you are using Spatial and Graph Web Feature Service (WFS) or Catalog Services for the Web (CSW) support, and if you have data from a previous release that was indexed using one or more SYS.XMLTABLEINDEX indexes, see Index Maintenance Before and After an Upgrade (WFS and CSW).
If you need to support geometries with more than 1,048,576 ordinates, see Increasing the Size of Ordinate Arrays to Support Very Large Geometries.