Logical parent rules

Several rules govern the definition of the logical parent segment type in a physical database.

  • A logical parent can be defined at any level in a physical database, including the root level.
  • A logical parent can have one or more logical children. Each logical child related to the same logical parent defines a logical relationship.
  • A segment in a physical database cannot be defined as both a logical parent and a logical child.
  • A logical parent can be defined in the same physical database as its logical child, or in a different physical database.