Take the 2-minute tour ×  I've and Oracle (11 Enterprise) schema
with a table      NODE_ID     RAW(16) NOT NULL,  and 3'rd party
library (Java 6, JDBC - latest jdbc driver) that manipulate it.
Oracle profiler (tkprof) shows that about 50% of overall time
the lib execute such statement:  update WSP_BUNDLE set
BUNDLE_DATA = :1 where NODE_ID = :2  TKProf data  Plan Hash:
4085453680 update WSP_BUNDLE set BUNDLE_DATA = :1  where NODE_ID
= :2   call     count       cpu    elapsed       disk      query
current        rows Parse      264      0.00       0.00
0          0          0           0 Execute    400     30.59
382.88     141451    1623163    3233827         400 Fetch
0      0.00       0.00          0          0          0
0 total      664     30.59     382.88     141451    1623163
3233827         400  Misses in library cache during parse: 0
Optimizer mode: ALL_ROWS Parsing user id: 87    Rows     Row
Source Operation       0  UPDATE  WSP_BUNDLE (cr=8753 pr=707
pw=706 time=