Existence Checking Options

Use this table to enter data in the following fields of the tab to specify the existence checking options for newly created descriptors:

Field | Description
--- | ---
Check Cache | Check the session cache. If the object is not in the cache, assume that the object does not exist (do an insert). If the object is in the cache, assume that the object exists (do an update). Oracle recommends using this option for most applications.
Check Cache then Database | If an object is not in the cache, query the database to determine if the object exists. If the object exists, do an update. Otherwise, do an insert. Selecting this option may negatively impact performance. For more information, see "Check Database".
Assume Existence | Always assume objects exist: always do an update (never do an insert). For more information, see "Assume Existence".
Assume Non-Existence | Always assume objects do not exist: always do an insert (never do an update). For more information, see "Assume Nonexistence".

See Also

  Configuring Existence Checking at the Project Level
  Configuring Cache Existence Checking at the Descriptor Level