By using the transaction identifier provided by （） for a particular row change， you can use the Flashback Transaction Query to see the operation performed by the transaction. Flashback Table。 Flashback Database。 Flashback Versions Query。 the RMAN REPORT command。 the DBA_PENDING_TRANSACTIONS view。
人民银行执法检查文书中，需要被检查人逐页签字的是哪份文书？（） 执法检查事实认定书。 执法检查意见书。 行政处罚意见告知书。 行政处罚决定书。
A constraint in a table is defined with the INITIALLY IMMEDIATE clause. You executed the ALTER TABLE command with the ENABLE VALIDATE option to enable the constraint that was disabled. What are the two effects of this command？（） It fails if any existing row violates the constraint.。 It does not validate the existing data in the table.。 It enables the constraint to be enforced at the end of each transaction.。 It prevents insert， update， and delete operations on the table while the constraint is in the process of being enabled.。
投保人与保险人就合同的条款达成协议的情况属于（） 保险合同成立。 保险合同生效。 保险责任开始。 保险合同续效。
A customer needs approximately 24 TB of RAW storage for some media files. SATA or nearline SAS drives are the obvious choice but rack space and budget are dominating factors. Which of thefollowing choices would be the best solution for this customer?（） N6210 with 12 2 TB SATA drives 。 DS5020 with 24 1 TB SATA drives 。 Storwize V7000 with 24 1 TB SATA drives 。 DS3500 with 12 2 TB nearline SAS drive。
固氮菌可能定居在（）
