此题为判断题(对,错)。
第1题:
Examine the following commands and their output:SQL> SELECT ename, sal FROM emp WHERE ename=‘JAMES‘; ENAME SAL JAMES 1050QL> UPDATE emp SET sal=sal+sal*1.2 WHERE ename=‘JAMES‘;1 row updated.SQL> SELECT ename, sal FROM emp WHERE ename=‘JAMES‘; ENAME SAL JAMES 2310View the exhibit and examine the Flashback Version Query that was executed after the preceding commands.What could be the possible cause for the query not displaying any row?()
A. Flashback logging is not enabled for the database.
B. The changes made to the table are not committed.
C. Supplemental logging is not enabled for the database.
D. The database is not configured in ARCHIVELOG mode.
第2题:
Elizabeth: Building houses with recycled materials and energy-efficiency systems
第3题:
第4题:
回的数据格式为()
A.{successful:true,resultValue:{},resultHint:}
B.{resultValue:{},resultHint:}
C.{successful:true,resultValue:{}}
D.{successful:true,resultHint:,resultValue:{}}
第5题:
53.
A. brave
B. famous
C. careful
D. successful
第6题: