, .
:
, , PCTFREE.
Oracle , , PCTFREE. , , PCTUSED.
DELETE UPDATE. . , , , .
, , , , DELENE UPDATE.
, PCTFREE PCTUSED 100, .
, .
, .
. (ROWID) .
, . PCTFREE, .
, .. Oracle , -.
, .
, , ( ) , . .
, , , , .
, Oracle .
.
, , () .
. 2.