ocp-288

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QUESTION NO: 288
Which method could be utilized to identify both DML operations and the SQL statements needed to undo
those operations for a specific schema owner? (Choose all that apply.)
A. Query DBA_TRANSACTION_QUERY for TABLE_NAME, OPERATION, and UNDO_SQL. Limit rows
by START_SCN and TABLE_OWNER.
B. Query FLASHBACK_TRANSACTION_QUERY for TABLE_NAME, OPERATION, and UNDO_SQL.
Limit rows by START_SCN and TABLE_OWNER.

C. Query FLASHBACK_TRANSACTION_QUERY for TABLE_NAME, OPERATION, and UNDO_SQL.
Limit rows by START_TIMESTAMP and TABLE_OWNER.
D. Query DBA_TRANSACTION_QUERY for TABLE_NAME, OPERATION, and UNDO_SQL. Limit rows
by START_SCN and TABLE_OWNER.
Answer: B,C
FLASHBACK_TRANSACTION_QUERY is the correct view to query, and it can be done using either
timestamps or SCN ranges. DBA_TRANSACTION_QUERY is not a valid view; therefore options A and D
are incorrect.

哪些方法可以用来识别需要为一个特定的方案拥有者撤消这些操作的DML操作和SQL语句？

B.由起始系统改变号和表所有者发起的查询闪回交易查询的表名，操作和撤消SQL.行限制。
C.由起始时间戳和表所有者发起的查询闪回交易查询的表名，操作和撤消SQL.行限制。