Search notes:
Oracle: Data dictionary cache
The
data dictionary cache
stores
information from the data dictionary
in memory because it is crucial for
Oracle
to work properly.
Row cache
The
data dictionary cache
is also referred to as
row cache
because its content is stored in rows rather than in
buffers
(which stores copies of entire
data blocks
).
Hence, in the
dynamic performance views
, some information about the data dictionary cache can be queried from
v$rowcache
.
See also
The
WAITED TOO LONG FOR A ROW CACHE ENQUEUE LOCK
warning in the alert log. (See MOS Note 278316.1)
Data dictionary
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