|Oracle® Database SQL Reference
10g Release 1 (10.1)
Part Number B10759-01
EMPTY_CLOB return an empty LOB locator that can be used to initialize a LOB variable or, in an
UPDATE statement, to initialize a LOB column or attribute to
EMPTY means that the LOB is initialized, but not populated with data. You must initialize a LOB attribute that is part of an object type before you can access and populate it.
You cannot use the locator returned from this function as a parameter to the
DBMS_LOB package or the OCI.
The following example initializes the
ad_photo column of the sample
pm.print_media table to
UPDATE print_media SET ad_photo = EMPTY_BLOB();