3.4 Avoiding Name Conflicts
To avoid possible conflicts between third-party names and Oracle-supplied names, any third-party implementation of ST_xxx types on Oracle should use a schema prefix.
Some third-party vendors support their own version of ST_xxx types on Oracle. For example, a vendor might create its own version of the ST_GEOMETRY type.
To avoid possible conflicts, that vendor’s implementation of ST_xxx types on Oracle should use a schema prefix.. This will ensure that if someone specifies a column type as just ST_GEOMETRY, the column will be created with the Oracle implementation of the ST_GEOMETRY type.
Parent topic: SQL Multimedia Type Support