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Which of the following statements is true regarding the VERSIONS BETWEEN clause?A. The VERSIONS BETWEEN clause may be used in DML statements.B. The VE 阅读全文
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At the request of a user, you issue the following command to restore a dropped table: flashback table "BIN$F2JFfMq8Q5unbC0ceE9eJg==$0" to before drop; 阅读全文
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Which of the following can be used in conjunction with a Flashback Versions Query to filter the results?(Choose all that apply.)A. A range of SCN valu 阅读全文
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Which pseudocolumn could you use to identify a unique row in a Flashback Versions Query?A. XIDB. VERSIONS_PKC. VERSIONS_XIDD. VERSIONS_UNIQUE 阅读全文
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Which of the following statements best describes Flashback Versions Query?A. Flashback Versions Query is used to make changes to multiple versions of 阅读全文
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Users notify you that their application is failing every time they try to add new records. Because ofpoor application design, the actual ORA error mes 阅读全文
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In order to perform Flashback Transaction Query operations, which of these steps are required?(Choose all that apply.)A. Ensure that database is runni 阅读全文
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AUM has been retaining about 15 minutes worth of undo. You want to double the retention period, but not at the expense of new transactions failing. Yo 阅读全文
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A user named Arren is executing this query:select table_name, operation, undo_sql fromflashback_transaction_query t,(select versions_xid as xidfrom em 阅读全文
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Over the course of a day, a department performed multiple DML statements (inserts, updates, deletes)on multiple rows of data in multiple tables. The m 阅读全文