In order to perform Flashback Transaction Query operations， which of these steps are required？（）A、 Ensure that database is running with version 10.1 compatibility.B、 Enable Flashback Logging.C、 Enable Supplemental Logging.D、 Ensure that the database is running with version 10.0 compatibility.E、 Ensure that the database is in ARCHIVELOG mode.
In order to perform Flashback Transaction Query operations， which of these steps are required？（）
- A、 Ensure that database is running with version 10.1 compatibility.
- B、 Enable Flashback Logging.
- C、 Enable Supplemental Logging.
- D、 Ensure that the database is running with version 10.0 compatibility.
- E、 Ensure that the database is in ARCHIVELOG mode.
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（）is for the operation ordering and the information exchange by internet among the firms. A、order processingB、order makingC、Electronic order systemD、order form
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Which two statements are true regarding the ORDER BY clause? （）A、The sort is in ascending by order by default.B、The sort is in descending order by default.C、The ORDER BY clause must precede the WHERE clause.D、The ORDER BY clause is executed on the client side.E、The ORDER BY clause comes last in the SELECT statement.F、The ORDER BY clause is executed first in the query execution.
The details of the order ID， order date， order total， and customer ID are obtained from the ORDERS table. If the order value is more than 30000， the details have to be added to the LARGEjDRDERS table. The order ID， order date， and order total should be added to the ORDERJHISTORY table， and order ID and customer ID should be added to the CUSTJHISTORY table. Which multitable INSERT statement would you use？ （）A、 Pivoting INSERTB、 Unconditional INSERTC、 Conditional ALL INSERTD、 Conditional FIRST INSERT
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