Oracle
1Z0-067 · Question #6
1Z0-067 Question #6: Real Exam Question with Answer & Explanation
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Question
Your database has a table customers that contains the columns cust_name, amt_due, and old_status. Examine the commands executed and their output: SQL>UPDATEcustomersSETamt_due=amt_due+amt_duel. 1WHEREcust_name='JAMES'; 1row updated. SQL> ALTER TABLE customers DROP COLUMN old_status; Table Altered SQL> UPDATE customers SET amt_due=amt_due+amt_due1.5 WHERE cust_r.ame='JAMES'; 1 row updated. SQL> COMMIT; SQL> SELECT versions_xid AS XID, versior.s_startscr. AS START_SCN, versions_er.cscn AS END_SCN, versior.s_operatior. AS OPERATION', amt_due FROM customers VERSIONS BETWEEN SCN MINVALULEAND MAXVALUE WHERE custname='JAMES';. XIDSTART_SCNEND_SCNOPERATIONAMT_DUE --------------- ------------------ ------------ --------- ------------- 07002f00cl03000017063371706337 U3300 Why is it that only one update is listed by the Flashback Version Query?
Options
- ASupplemental logging is not enabled for the database.
- BThe undo data that existed for versions of rows before the change to the table structure is
- CThe db_flash3ACK_reteni:on_target parameter is set to a lower value and the undo data
- DUndo retention guarantee is not enabled.
- EFlashback Data Archive is full after the first update statement.
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