Query
------------------------------------------------
SELECT UUID_TO_CHAR(UU_ID), STR
  FROM UUID_TEST
  WHERE UU_ID = CHAR_TO_UUID('7D6A783D-AB42-40BB-BE5D-BD5814061D72');

Plan
------------------------------------------------
PLAN (UUID_TEST INDEX (UUID_TEST__UQ))

Query Time
------------------------------------------------
Prepare       : 0.00 ms
Execute       : 0.00 ms
Avg fetch time: 0.00 ms

Memory
------------------------------------------------
Current: 12 154 792
Max    : 14 014 560
Buffers: 2 048

Operations
------------------------------------------------
Read   : 0
Writes : 0
Fetches: 11
Marks  : 0


Enchanced Info:
+-------------------------------+-----------+-----------+-------------+---------+---------+---------+----------+----------+----------+
|          Table Name           |  Records  |  Indexed  | Non-Indexed | Updates | Deletes | Inserts | Backouts |  Purges  | Expunges |
|                               |   Total   |   reads   |    reads    |         |         |         |          |          |          |
+-------------------------------+-----------+-----------+-------------+---------+---------+---------+----------+----------+----------+
|UUID_TEST                      |         0 |         1 |           0 |       0 |       0 |       0 |        0 |        0 |        0 |
+-------------------------------+-----------+-----------+-------------+---------+---------+---------+----------+----------+----------+